diff --git a/eslint/general.js b/eslint/general.js
index ccacf5ae9..b274a15a4 100644
--- a/eslint/general.js
+++ b/eslint/general.js
@@ -101,6 +101,7 @@ module.exports = {
     'ts/explicit-member-accessibility': 'error',
     'ts/method-signature-style': 'error',
     'ts/no-confusing-non-null-assertion': 'error',
+    'ts/no-explicit-any': 'error',
     'ts/no-extraneous-class': [ 'error', {
       allowConstructorOnly: false,
       allowEmpty: false,
diff --git a/eslint/test.js b/eslint/test.js
index ad5bb33d4..c62c4efe5 100644
--- a/eslint/test.js
+++ b/eslint/test.js
@@ -32,6 +32,7 @@ module.exports = {
     'test/prefer-lowercase-title': 'off',
 
     'ts/naming-convention': 'off',
+    'ts/no-explicit-any': 'off',
     'ts/no-unsafe-argument': 'off',
     'ts/no-unsafe-assignment': 'off',
     'ts/no-unsafe-call': 'off',
diff --git a/src/http/output/error/ConvertingErrorHandler.ts b/src/http/output/error/ConvertingErrorHandler.ts
index 1a0687529..d58150dec 100644
--- a/src/http/output/error/ConvertingErrorHandler.ts
+++ b/src/http/output/error/ConvertingErrorHandler.ts
@@ -62,8 +62,8 @@ export class ConvertingErrorHandler extends ErrorHandler {
   private async extractErrorDetails({ error, request }: ErrorHandlerArgs): Promise<PreparedArguments> {
     if (!this.showStackTrace) {
       delete error.stack;
-      // eslint-disable-next-line ts/no-unsafe-member-access
-      delete (error as any).cause;
+      // Cheating here to delete a readonly field
+      delete (error as { cause: unknown }).cause;
     }
     const representation = new BasicRepresentation([ error ], error.metadata, INTERNAL_ERROR, false);
     const identifier = { path: representation.metadata.identifier.value };
diff --git a/src/http/representation/BasicRepresentation.ts b/src/http/representation/BasicRepresentation.ts
index 9c961805b..4cb1a7756 100644
--- a/src/http/representation/BasicRepresentation.ts
+++ b/src/http/representation/BasicRepresentation.ts
@@ -35,7 +35,7 @@ export class BasicRepresentation implements Representation {
    * @param binary - Whether the representation is a binary or object stream
    */
   public constructor(
-    data: Guarded<Readable> | Readable | any[] | string,
+    data: Guarded<Readable> | Readable | unknown[] | string,
     metadata: RepresentationMetadata | MetadataRecord,
     binary?: boolean,
   );
@@ -47,7 +47,7 @@ export class BasicRepresentation implements Representation {
    * @param binary - Whether the representation is a binary or object stream
    */
   public constructor(
-    data: Guarded<Readable> | Readable | any[] | string,
+    data: Guarded<Readable> | Readable | unknown[] | string,
     metadata: RepresentationMetadata | MetadataRecord,
     contentType?: string,
     binary?: boolean,
@@ -59,7 +59,7 @@ export class BasicRepresentation implements Representation {
    * @param binary - Whether the representation is a binary or object stream
    */
   public constructor(
-    data: Guarded<Readable> | Readable | any[] | string,
+    data: Guarded<Readable> | Readable | unknown[] | string,
     contentType: string,
     binary?: boolean,
   );
@@ -71,7 +71,7 @@ export class BasicRepresentation implements Representation {
    * @param binary - Whether the representation is a binary or object stream
    */
   public constructor(
-    data: Guarded<Readable> | Readable | any[] | string,
+    data: Guarded<Readable> | Readable | unknown[] | string,
     identifier: MetadataIdentifier,
     metadata?: MetadataRecord,
     binary?: boolean,
@@ -84,14 +84,14 @@ export class BasicRepresentation implements Representation {
    * @param binary - Whether the representation is a binary or object stream
    */
   public constructor(
-    data: Guarded<Readable> | Readable | any[] | string,
+    data: Guarded<Readable> | Readable | unknown[] | string,
     identifier: MetadataIdentifier,
     contentType?: string,
     binary?: boolean,
   );
 
   public constructor(
-    data?: Readable | any[] | string,
+    data?: Readable | unknown[] | string,
     metadata?: RepresentationMetadata | MetadataRecord | MetadataIdentifier | string,
     metadataRest?: MetadataRecord | string | boolean,
     binary?: boolean,
@@ -109,8 +109,7 @@ export class BasicRepresentation implements Representation {
     }
     if (!isRepresentationMetadata(metadata) || typeof metadataRest === 'string') {
       // This combination will always match with a valid overload
-      // eslint-disable-next-line ts/no-unsafe-argument
-      metadata = new RepresentationMetadata(metadata as any, metadataRest as any);
+      metadata = new RepresentationMetadata(metadata as RepresentationMetadata, metadataRest as string);
     }
     this.metadata = metadata;
 
diff --git a/src/http/representation/RepresentationMetadata.ts b/src/http/representation/RepresentationMetadata.ts
index d85a0f66a..e96465752 100644
--- a/src/http/representation/RepresentationMetadata.ts
+++ b/src/http/representation/RepresentationMetadata.ts
@@ -15,7 +15,7 @@ export type MetadataGraph = NamedNode | BlankNode | DefaultGraph | string;
 /**
  * Determines whether the object is a `RepresentationMetadata`.
  */
-export function isRepresentationMetadata(object: any): object is RepresentationMetadata {
+export function isRepresentationMetadata(object: unknown): object is RepresentationMetadata {
   return typeof (object as RepresentationMetadata)?.setMetadata === 'function';
 }
 
@@ -240,7 +240,7 @@ export class RepresentationMetadata {
    * @param graph - Optional graph of where to add the values to.
    */
   public add(predicate: NamedNode, object: MetadataValue, graph?: MetadataGraph): this {
-    return this.forQuads(predicate, object, (pred, obj): any => this.addQuad(this.id, pred, obj, graph));
+    return this.forQuads(predicate, object, (pred, obj): unknown => this.addQuad(this.id, pred, obj, graph));
   }
 
   /**
@@ -250,7 +250,7 @@ export class RepresentationMetadata {
    * @param graph - Optional graph of where to remove the values from.
    */
   public remove(predicate: NamedNode, object: MetadataValue, graph?: MetadataGraph): this {
-    return this.forQuads(predicate, object, (pred, obj): any => this.removeQuad(this.id, pred, obj, graph));
+    return this.forQuads(predicate, object, (pred, obj): unknown => this.removeQuad(this.id, pred, obj, graph));
   }
 
   /**
@@ -290,8 +290,12 @@ export class RepresentationMetadata {
   ): boolean {
     // This works with N3.js but at the time of writing the typings have not been updated yet.
     // If you see this line of code check if the typings are already correct and update this if so.
-    // eslint-disable-next-line ts/no-unsafe-call
-    return (this.store.has as any)(this.id, predicate, object, graph) as boolean;
+    return (this.store as unknown as {
+      has: (subject: Term,
+        predicate: Term | string | null,
+        object: Term | string | null,
+        graph: Term | string | null) => boolean;
+    }).has(this.id, predicate, object, graph) as boolean;
   }
 
   /**
diff --git a/src/identity/configuration/IdentityProviderFactory.ts b/src/identity/configuration/IdentityProviderFactory.ts
index 026ce76aa..094750a4a 100644
--- a/src/identity/configuration/IdentityProviderFactory.ts
+++ b/src/identity/configuration/IdentityProviderFactory.ts
@@ -187,14 +187,20 @@ export class IdentityProviderFactory implements ProviderFactory {
     provider.use(async(ctx, next): Promise<void> => {
       const accepts = ctx.accepts.bind(ctx);
 
-      // Using `any` typings to make sure we support all different versions of `ctx.accepts`
-      ctx.accepts = (...types): any => {
+      // This is how you get the correct typing for an overloaded function
+      type AcceptFn = {
+        (): string[];
+        (...types: string[]): string | false;
+        (types: string[]): string | false;
+      };
+
+      ctx.accepts = ((...types): string[] | string | false => {
         // Make sure we only override our specific case
         if (types.length === 2 && types[0] === 'json' && types[1] === 'html') {
           return 'html';
         }
         return accepts(...types as string[]);
-      };
+      }) as AcceptFn;
 
       return next();
     });
@@ -257,7 +263,7 @@ export class IdentityProviderFactory implements ProviderFactory {
    * Checks if the given token is an access token.
    * The AccessToken interface is not exported, so we have to access it like this.
    */
-  private isAccessToken(token: any): token is KoaContextWithOIDC['oidc']['accessToken'] {
+  private isAccessToken(token: unknown): token is KoaContextWithOIDC['oidc']['accessToken'] {
     return (token as KoaContextWithOIDC['oidc']['accessToken'])?.kind === 'AccessToken';
   }
 
@@ -270,7 +276,7 @@ export class IdentityProviderFactory implements ProviderFactory {
     // Some fields are still missing, see https://github.com/CommunitySolidServer/CommunitySolidServer/issues/1154#issuecomment-1040233385
     config.findAccount = async(ctx: KoaContextWithOIDC, sub: string): Promise<Account> => ({
       accountId: sub,
-      async claims(): Promise<{ sub: string; [key: string]: any }> {
+      async claims(): Promise<{ sub: string; [key: string]: unknown }> {
         return { sub, webid: sub, azp: ctx.oidc.client?.clientId };
       },
     });
diff --git a/src/identity/interaction/ControlHandler.ts b/src/identity/interaction/ControlHandler.ts
index 0c0506862..a50d5c5c4 100644
--- a/src/identity/interaction/ControlHandler.ts
+++ b/src/identity/interaction/ControlHandler.ts
@@ -1,5 +1,6 @@
+import type { Json } from '../../util/Json';
 import { ACCOUNT_ID_KEY } from './account/AccountIdRoute';
-import type { Json, JsonRepresentation } from './InteractionUtil';
+import type { JsonRepresentation } from './InteractionUtil';
 import type { JsonInteractionHandlerInput } from './JsonInteractionHandler';
 import { JsonInteractionHandler } from './JsonInteractionHandler';
 import type { InteractionRoute } from './routing/InteractionRoute';
diff --git a/src/identity/interaction/InteractionUtil.ts b/src/identity/interaction/InteractionUtil.ts
index 3a1646077..6c3541884 100644
--- a/src/identity/interaction/InteractionUtil.ts
+++ b/src/identity/interaction/InteractionUtil.ts
@@ -3,16 +3,12 @@ import type Provider from '../../../templates/types/oidc-provider';
 import type { RepresentationMetadata } from '../../http/representation/RepresentationMetadata';
 import { getLoggerFor } from '../../logging/LogUtil';
 import { BadRequestHttpError } from '../../util/errors/BadRequestHttpError';
+import type { Json } from '../../util/Json';
 import type { Interaction } from './InteractionHandler';
 import Dict = NodeJS.Dict;
 
 const logger = getLoggerFor('AccountUtil');
 
-/**
- * A JSON object.
- */
-export type Json = string | number | boolean | Dict<Json> | Json[];
-
 /**
  * Contains a JSON object and any associated metadata.
  * Similar to a {@link Representation} but with all the data in memory instead of as a stream
diff --git a/src/identity/interaction/JsonConversionHandler.ts b/src/identity/interaction/JsonConversionHandler.ts
index 80af8ada1..d165ca0d7 100644
--- a/src/identity/interaction/JsonConversionHandler.ts
+++ b/src/identity/interaction/JsonConversionHandler.ts
@@ -3,10 +3,10 @@ import type { Representation } from '../../http/representation/Representation';
 import { RepresentationMetadata } from '../../http/representation/RepresentationMetadata';
 import type { RepresentationConverter } from '../../storage/conversion/RepresentationConverter';
 import { APPLICATION_JSON } from '../../util/ContentTypes';
+import type { Json } from '../../util/Json';
 import { readJsonStream } from '../../util/StreamUtil';
 import type { InteractionHandlerInput } from './InteractionHandler';
 import { InteractionHandler } from './InteractionHandler';
-import type { Json } from './InteractionUtil';
 import type { JsonInteractionHandler, JsonInteractionHandlerInput } from './JsonInteractionHandler';
 
 /**
diff --git a/src/identity/interaction/JsonInteractionHandler.ts b/src/identity/interaction/JsonInteractionHandler.ts
index 9846c95eb..7ccc95b9d 100644
--- a/src/identity/interaction/JsonInteractionHandler.ts
+++ b/src/identity/interaction/JsonInteractionHandler.ts
@@ -1,8 +1,9 @@
 import type { RepresentationMetadata } from '../../http/representation/RepresentationMetadata';
 import type { ResourceIdentifier } from '../../http/representation/ResourceIdentifier';
 import { AsyncHandler } from '../../util/handlers/AsyncHandler';
+import type { Json } from '../../util/Json';
 import type { Interaction } from './InteractionHandler';
-import type { Json, JsonRepresentation } from './InteractionUtil';
+import type { JsonRepresentation } from './InteractionUtil';
 import Dict = NodeJS.Dict;
 
 export interface JsonInteractionHandlerInput {
diff --git a/src/identity/interaction/OidcControlHandler.ts b/src/identity/interaction/OidcControlHandler.ts
index 7da91bc8c..0282254b0 100644
--- a/src/identity/interaction/OidcControlHandler.ts
+++ b/src/identity/interaction/OidcControlHandler.ts
@@ -1,5 +1,5 @@
+import type { Json } from '../../util/Json';
 import { ControlHandler } from './ControlHandler';
-import type { Json } from './InteractionUtil';
 import type { JsonInteractionHandlerInput } from './JsonInteractionHandler';
 
 /**
diff --git a/src/identity/interaction/StaticInteractionHandler.ts b/src/identity/interaction/StaticInteractionHandler.ts
index 6833a2d2f..661445099 100644
--- a/src/identity/interaction/StaticInteractionHandler.ts
+++ b/src/identity/interaction/StaticInteractionHandler.ts
@@ -1,4 +1,5 @@
-import type { Json, JsonRepresentation } from './InteractionUtil';
+import type { Json } from '../../util/Json';
+import type { JsonRepresentation } from './InteractionUtil';
 import { JsonInteractionHandler } from './JsonInteractionHandler';
 
 /**
diff --git a/src/identity/interaction/YupUtil.ts b/src/identity/interaction/YupUtil.ts
index fb48caff6..242818658 100644
--- a/src/identity/interaction/YupUtil.ts
+++ b/src/identity/interaction/YupUtil.ts
@@ -1,11 +1,13 @@
 import { string } from 'yup';
-import type { ObjectSchema, Schema, ValidateOptions } from 'yup';
+import type { AnyObject, Maybe, ObjectSchema, Schema, ValidateOptions } from 'yup';
 import { BadRequestHttpError } from '../../util/errors/BadRequestHttpError';
 import { createErrorMessage } from '../../util/errors/ErrorUtil';
+import type { Json } from '../../util/Json';
 import { isUrl } from '../../util/StringUtil';
-import type { Json } from './InteractionUtil';
 import Dict = NodeJS.Dict;
 
+type BaseObjectSchema = ObjectSchema<Maybe<AnyObject>>;
+
 // The builtin `url` validator of `yup` does not support localhost URLs, so we create a custom one here.
 // The reason for having a URL validator on the WebID is to prevent us from generating invalid ACL,
 // which would break the pod creation causing us to have an incomplete pod.
@@ -20,16 +22,16 @@ export const URL_SCHEMA = string().trim().optional().test({
   },
 });
 
-function isObjectSchema(schema: Schema): schema is ObjectSchema<any> {
+function isObjectSchema(schema: Schema): schema is BaseObjectSchema {
   return schema.type === 'object';
 }
 
 // `T` can't extend Schema since it could also be a Reference, which is a type `yup` doesn't export
-type SchemaType<T> = T extends ObjectSchema<any> ? ObjectType<T> : { required: boolean; type: string };
+type SchemaType<T> = T extends BaseObjectSchema ? ObjectType<T> : { required: boolean; type: string };
 // The type of the fields in an object schema
-type FieldType<T extends ObjectSchema<any>> = T extends { fields: Record<infer R, any> } ? R : never;
+type FieldType<T extends BaseObjectSchema> = T extends { fields: Record<infer R, unknown> } ? R : never;
 // Simplified type we use to represent yup objects
-type ObjectType<T extends ObjectSchema<any>> =
+type ObjectType<T extends BaseObjectSchema> =
   { required: boolean; type: 'object'; fields: {[ K in FieldType<T> ]: SchemaType<T['fields'][K]> }};
 
 /**
@@ -50,7 +52,7 @@ function parseSchemaDescription<T extends Schema>(schema: T): SchemaType<T> {
 /**
  * Generates a simplified representation of a yup schema.
  */
-export function parseSchema<T extends ObjectSchema<any>>(schema: T): Pick<SchemaType<T>, 'fields'> {
+export function parseSchema<T extends BaseObjectSchema>(schema: T): Pick<SchemaType<T>, 'fields'> {
   const result = parseSchemaDescription(schema);
   return { fields: result.fields };
 }
@@ -58,13 +60,12 @@ export function parseSchema<T extends ObjectSchema<any>>(schema: T): Pick<Schema
 /**
  * Same functionality as the yup validate function, but throws a {@link BadRequestHttpError} if there is an error.
  */
-export async function validateWithError<T extends ObjectSchema<any>>(
+export async function validateWithError<T extends BaseObjectSchema>(
   schema: T,
   data: unknown,
-  options?: ValidateOptions<any>,
+  options?: ValidateOptions<AnyObject>,
 ): Promise<T['__outputType']> {
   try {
-    // eslint-disable-next-line ts/no-unsafe-return
     return await schema.validate(data, options);
   } catch (error: unknown) {
     throw new BadRequestHttpError(createErrorMessage(error));
diff --git a/src/identity/interaction/account/util/BaseAccountStore.ts b/src/identity/interaction/account/util/BaseAccountStore.ts
index f1e8aa0a2..200d398cb 100644
--- a/src/identity/interaction/account/util/BaseAccountStore.ts
+++ b/src/identity/interaction/account/util/BaseAccountStore.ts
@@ -22,9 +22,10 @@ export class BaseAccountStore extends Initializer implements AccountStore {
   private readonly storage: AccountLoginStorage<{ [ACCOUNT_TYPE]: typeof ACCOUNT_STORAGE_DESCRIPTION }>;
   private initialized = false;
 
-  public constructor(storage: AccountLoginStorage<any>) {
+  // Wrong typings to prevent Components.js typing issues
+  public constructor(storage: AccountLoginStorage<Record<string, never>>) {
     super();
-    this.storage = storage as typeof this.storage;
+    this.storage = storage as unknown as typeof this.storage;
   }
 
   // Initialize the type definitions
diff --git a/src/identity/interaction/client-credentials/util/BaseClientCredentialsStore.ts b/src/identity/interaction/client-credentials/util/BaseClientCredentialsStore.ts
index 51e043d28..eb075722f 100644
--- a/src/identity/interaction/client-credentials/util/BaseClientCredentialsStore.ts
+++ b/src/identity/interaction/client-credentials/util/BaseClientCredentialsStore.ts
@@ -27,9 +27,10 @@ export class BaseClientCredentialsStore extends Initializer implements ClientCre
 
   private initialized = false;
 
-  public constructor(storage: AccountLoginStorage<any>) {
+  // Wrong typings to prevent Components.js typing issues
+  public constructor(storage: AccountLoginStorage<Record<string, never>>) {
     super();
-    this.storage = storage as typeof this.storage;
+    this.storage = storage as unknown as typeof this.storage;
   }
 
   // Initialize the type definitions
diff --git a/src/identity/interaction/login/ResolveLoginHandler.ts b/src/identity/interaction/login/ResolveLoginHandler.ts
index 142376f97..ddba472a2 100644
--- a/src/identity/interaction/login/ResolveLoginHandler.ts
+++ b/src/identity/interaction/login/ResolveLoginHandler.ts
@@ -1,10 +1,11 @@
 import { RepresentationMetadata } from '../../../http/representation/RepresentationMetadata';
 import { getLoggerFor } from '../../../logging/LogUtil';
+import type { Json } from '../../../util/Json';
 import { SOLID_HTTP } from '../../../util/Vocabularies';
 import { ACCOUNT_SETTINGS_REMEMBER_LOGIN } from '../account/util/AccountStore';
 import type { AccountStore } from '../account/util/AccountStore';
 import type { CookieStore } from '../account/util/CookieStore';
-import type { Json, JsonRepresentation } from '../InteractionUtil';
+import type { JsonRepresentation } from '../InteractionUtil';
 import { finishInteraction } from '../InteractionUtil';
 import type { JsonInteractionHandlerInput } from '../JsonInteractionHandler';
 import { JsonInteractionHandler } from '../JsonInteractionHandler';
diff --git a/src/identity/interaction/password/util/BasePasswordStore.ts b/src/identity/interaction/password/util/BasePasswordStore.ts
index 495418fee..997f3f998 100644
--- a/src/identity/interaction/password/util/BasePasswordStore.ts
+++ b/src/identity/interaction/password/util/BasePasswordStore.ts
@@ -29,9 +29,10 @@ export class BasePasswordStore extends Initializer implements PasswordStore {
   private readonly saltRounds: number;
   private initialized = false;
 
-  public constructor(storage: AccountLoginStorage<any>, saltRounds = 10) {
+  // Wrong typings to prevent Components.js typing issues
+  public constructor(storage: AccountLoginStorage<Record<string, never>>, saltRounds = 10) {
     super();
-    this.storage = storage as typeof this.storage;
+    this.storage = storage as unknown as typeof this.storage;
     this.saltRounds = saltRounds;
   }
 
diff --git a/src/identity/interaction/pod/util/BasePodStore.ts b/src/identity/interaction/pod/util/BasePodStore.ts
index 5bd249781..f6f9d2ac3 100644
--- a/src/identity/interaction/pod/util/BasePodStore.ts
+++ b/src/identity/interaction/pod/util/BasePodStore.ts
@@ -44,9 +44,10 @@ export class BasePodStore extends Initializer implements PodStore {
 
   private initialized = false;
 
-  public constructor(storage: AccountLoginStorage<any>, manager: PodManager, visible = false) {
+  // Wrong typings to prevent Components.js typing issues
+  public constructor(storage: AccountLoginStorage<Record<string, never>>, manager: PodManager, visible = false) {
     super();
-    this.storage = storage as typeof this.storage;
+    this.storage = storage as unknown as typeof this.storage;
     this.visible = visible;
     this.manager = manager;
   }
diff --git a/src/identity/interaction/routing/InteractionRouteHandler.ts b/src/identity/interaction/routing/InteractionRouteHandler.ts
index 45e204484..3482aa4c2 100644
--- a/src/identity/interaction/routing/InteractionRouteHandler.ts
+++ b/src/identity/interaction/routing/InteractionRouteHandler.ts
@@ -10,7 +10,7 @@ import type { InteractionRoute } from './InteractionRoute';
  * Rejects operations that target a different route,
  * otherwise the input parameters are passed to the source handler.
  */
-export class InteractionRouteHandler<T extends InteractionRoute<any>> extends JsonInteractionHandler {
+export class InteractionRouteHandler<T extends InteractionRoute<string>> extends JsonInteractionHandler {
   protected readonly route: T;
   protected readonly source: JsonInteractionHandler;
 
diff --git a/src/identity/interaction/webid/util/BaseWebIdStore.ts b/src/identity/interaction/webid/util/BaseWebIdStore.ts
index 8c1248c3a..2abd2d24f 100644
--- a/src/identity/interaction/webid/util/BaseWebIdStore.ts
+++ b/src/identity/interaction/webid/util/BaseWebIdStore.ts
@@ -23,9 +23,10 @@ export class BaseWebIdStore extends Initializer implements WebIdStore {
   private readonly storage: AccountLoginStorage<{ [WEBID_STORAGE_TYPE]: typeof WEBID_STORAGE_DESCRIPTION }>;
   private initialized = false;
 
-  public constructor(storage: AccountLoginStorage<any>) {
+  // Wrong typings to prevent Components.js typing issues
+  public constructor(storage: AccountLoginStorage<Record<string, never>>) {
     super();
-    this.storage = storage as typeof this.storage;
+    this.storage = storage as unknown as typeof this.storage;
   }
 
   // Initialize the type definitions
diff --git a/src/index.ts b/src/index.ts
index a57c18c4c..3e4c844d4 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -615,6 +615,7 @@ export * from './util/GenericEventEmitter';
 export * from './util/GuardedStream';
 export * from './util/HeaderUtil';
 export * from './util/IterableUtil';
+export * from './util/Json';
 export * from './util/PathUtil';
 export * from './util/PromiseUtil';
 export * from './util/QuadUtil';
diff --git a/src/init/AppRunner.ts b/src/init/AppRunner.ts
index 0f2f701c1..0baca15c3 100644
--- a/src/init/AppRunner.ts
+++ b/src/init/AppRunner.ts
@@ -105,9 +105,9 @@ export class AppRunner {
     let configs = input.config ?? [ '@css:config/default.json' ];
     configs = (Array.isArray(configs) ? configs : [ configs ]).map(resolveAssetPath);
 
-    let componentsManager: ComponentsManager<any>;
+    let componentsManager: ComponentsManager<App | CliResolver>;
     try {
-      componentsManager = await this.createComponentsManager<any>(loaderProperties, configs);
+      componentsManager = await this.createComponentsManager<App>(loaderProperties, configs);
     } catch (error: unknown) {
       this.resolveError(`Could not build the config files from ${configs.join(',')}`, error);
     }
@@ -227,7 +227,7 @@ export class AppRunner {
 
     // Finally try and read from the config.community-solid-server
     // field in the root package.json
-    const pkg = await readJSON(packageJsonPath) as { config?: Record<string, any> };
+    const pkg = await readJSON(packageJsonPath) as { config?: Record<string, unknown> };
     if (typeof pkg.config?.['community-solid-server'] === 'object') {
       return pkg.config['community-solid-server'] as Record<string, unknown>;
     }
diff --git a/src/init/cli/YargsCliExtractor.ts b/src/init/cli/YargsCliExtractor.ts
index 7b711f91b..5b8922701 100644
--- a/src/init/cli/YargsCliExtractor.ts
+++ b/src/init/cli/YargsCliExtractor.ts
@@ -19,7 +19,7 @@ export class YargsParameter {
    * @param name - Name of the parameter. Corresponds to the first parameter passed to the `yargs.options` function.
    * @param options - Options for a single parameter that should be parsed. @range {json}
    */
-  public constructor(name: string, options: Record<string, any>) {
+  public constructor(name: string, options: Record<string, unknown>) {
     this.name = name;
     this.options = options;
   }
diff --git a/src/init/migration/V6MigrationInitializer.ts b/src/init/migration/V6MigrationInitializer.ts
index 2a9afe274..a6da3e52f 100644
--- a/src/init/migration/V6MigrationInitializer.ts
+++ b/src/init/migration/V6MigrationInitializer.ts
@@ -68,11 +68,12 @@ export interface V6MigrationInitializerArgs {
   /**
    * Storages for which all entries need to be removed.
    */
-  cleanupStorages: KeyValueStorage<string, any>[];
+  cleanupStorages: KeyValueStorage<string, unknown>[];
   /**
    * The storage that will contain the account data in the new format.
+   * Wrong typings to prevent Components.js typing issues.
    */
-  newAccountStorage: AccountLoginStorage<any>;
+  newAccountStorage: AccountLoginStorage<Record<string, never>>;
   /**
    * The storage that will contain the setup entries in the new format.
    */
@@ -100,7 +101,7 @@ export class V6MigrationInitializer extends Initializer {
 
   private readonly accountStorage: KeyValueStorage<string, Account | Settings>;
   private readonly clientCredentialsStorage: KeyValueStorage<string, ClientCredentials>;
-  private readonly cleanupStorages: KeyValueStorage<string, any>[];
+  private readonly cleanupStorages: KeyValueStorage<string, unknown>[];
 
   private readonly newAccountStorage: AccountLoginStorage<typeof STORAGE_DESCRIPTION>;
   private readonly newSetupStorage: KeyValueStorage<string, string>;
@@ -113,7 +114,7 @@ export class V6MigrationInitializer extends Initializer {
     this.accountStorage = args.accountStorage;
     this.clientCredentialsStorage = args.clientCredentialsStorage;
     this.cleanupStorages = args.cleanupStorages;
-    this.newAccountStorage = args.newAccountStorage as AccountLoginStorage<typeof STORAGE_DESCRIPTION>;
+    this.newAccountStorage = args.newAccountStorage as unknown as AccountLoginStorage<typeof STORAGE_DESCRIPTION>;
     this.newSetupStorage = args.newSetupStorage;
   }
 
diff --git a/src/init/variables/CombinedShorthandResolver.ts b/src/init/variables/CombinedShorthandResolver.ts
index 199706cf2..afa204b28 100644
--- a/src/init/variables/CombinedShorthandResolver.ts
+++ b/src/init/variables/CombinedShorthandResolver.ts
@@ -14,7 +14,7 @@ export class CombinedShorthandResolver extends ShorthandResolver {
   }
 
   public async handle(input: Record<string, unknown>): Promise<Record<string, unknown>> {
-    const vars: Record<string, any> = {};
+    const vars: Record<string, unknown> = {};
     for (const [ name, computer ] of Object.entries(this.resolvers)) {
       try {
         vars[name] = await computer.handleSafe(input);
diff --git a/src/logging/WinstonLogger.ts b/src/logging/WinstonLogger.ts
index b2f6e9542..86381e357 100644
--- a/src/logging/WinstonLogger.ts
+++ b/src/logging/WinstonLogger.ts
@@ -13,7 +13,7 @@ export class WinstonLogger extends BaseLogger {
     this.logger = logger;
   }
 
-  public log(level: LogLevel, message: string, meta?: any): this {
+  public log(level: LogLevel, message: string, meta?: unknown): this {
     this.logger.log(level, message, meta);
     return this;
   }
diff --git a/src/logging/WinstonLoggerFactory.ts b/src/logging/WinstonLoggerFactory.ts
index a34c79334..66e0c5873 100644
--- a/src/logging/WinstonLoggerFactory.ts
+++ b/src/logging/WinstonLoggerFactory.ts
@@ -1,3 +1,4 @@
+import type { TransformableInfo } from 'logform';
 import { createLogger, format, transports } from 'winston';
 import type * as Transport from 'winston-transport';
 import type { Logger, LogMetadata } from './Logger';
@@ -33,7 +34,7 @@ export class WinstonLoggerFactory implements LoggerFactory {
         format.timestamp(),
         format.metadata({ fillExcept: [ 'level', 'timestamp', 'label', 'message' ]}),
         format.printf(
-          ({ level: levelInner, message, label: labelInner, timestamp, metadata: meta }: Record<string, any>): string =>
+          ({ level: levelInner, message, label: labelInner, timestamp, metadata: meta }: TransformableInfo): string =>
           `${timestamp} [${labelInner}] {${this.clusterInfo(meta as LogMetadata)}} ${levelInner}: ${message}`,
         ),
       ),
diff --git a/src/pods/generate/BaseComponentsJsFactory.ts b/src/pods/generate/BaseComponentsJsFactory.ts
index e24dd3d6c..d49ac8e88 100644
--- a/src/pods/generate/BaseComponentsJsFactory.ts
+++ b/src/pods/generate/BaseComponentsJsFactory.ts
@@ -10,7 +10,7 @@ import type { ComponentsJsFactory } from './ComponentsJsFactory';
  * but moduleState will be stored in between calls.
  */
 export class BaseComponentsJsFactory implements ComponentsJsFactory {
-  private readonly options: IComponentsManagerBuilderOptions<any>;
+  private readonly options: IComponentsManagerBuilderOptions<unknown>;
 
   public constructor(relativeModulePath = '../../../', logLevel = 'error') {
     this.options = {
@@ -21,7 +21,7 @@ export class BaseComponentsJsFactory implements ComponentsJsFactory {
     };
   }
 
-  private async buildManager(): Promise<ComponentsManager<any>> {
+  private async buildManager(): Promise<ComponentsManager<unknown>> {
     const manager = await ComponentsManager.build(this.options);
     this.options.moduleState = manager.moduleState;
     return manager;
@@ -35,7 +35,7 @@ export class BaseComponentsJsFactory implements ComponentsJsFactory {
    *
    * @returns The resulting object, corresponding to the given component IRI.
    */
-  public async generate<T>(configPath: string, componentIri: string, variables: Record<string, any>):
+  public async generate<T>(configPath: string, componentIri: string, variables: Record<string, unknown>):
   Promise<T> {
     const manager = await this.buildManager();
     await manager.configRegistry.register(configPath);
diff --git a/src/pods/generate/ComponentsJsFactory.ts b/src/pods/generate/ComponentsJsFactory.ts
index 318d6a258..6ce82bcc4 100644
--- a/src/pods/generate/ComponentsJsFactory.ts
+++ b/src/pods/generate/ComponentsJsFactory.ts
@@ -10,5 +10,5 @@ export interface ComponentsJsFactory {
    *
    * @returns The resulting object, corresponding to the given component IRI.
    */
-  generate: <T>(configPath: string, componentIri: string, variables: Record<string, any>) => Promise<T>;
+  generate: <T>(configPath: string, componentIri: string, variables: Record<string, unknown>) => Promise<T>;
 }
diff --git a/src/server/middleware/CorsHandler.ts b/src/server/middleware/CorsHandler.ts
index 4f7dc1890..fb603f835 100644
--- a/src/server/middleware/CorsHandler.ts
+++ b/src/server/middleware/CorsHandler.ts
@@ -35,10 +35,10 @@ export class CorsHandler extends HttpHandler {
     req: CorsRequest,
     res: {
       statusCode?: number;
-      setHeader: (key: string, value: string) => any;
-      end: () => any;
+      setHeader: (key: string, value: string) => unknown;
+      end: () => unknown;
     },
-    next: (err?: any) => any,
+    next: (err?: unknown) => unknown,
   ) => void;
 
   public constructor(options: SimpleCorsOptions = {}) {
diff --git a/src/server/util/BaseRouterHandler.ts b/src/server/util/BaseRouterHandler.ts
index 7377707a2..8bcf9a927 100644
--- a/src/server/util/BaseRouterHandler.ts
+++ b/src/server/util/BaseRouterHandler.ts
@@ -5,7 +5,7 @@ import type { AsyncHandlerInput, AsyncHandlerOutput } from '../../util/handlers/
 import { AsyncHandler } from '../../util/handlers/AsyncHandler';
 import { trimTrailingSlashes } from '../../util/PathUtil';
 
-export interface BaseRouterHandlerArgs<T extends AsyncHandler<any, any>> {
+export interface BaseRouterHandlerArgs<T extends AsyncHandler<unknown, unknown>> {
   /**
    * The base URL of the server.
    * Not required if no value is provided for `allowedPathNames`.
@@ -36,7 +36,7 @@ export interface BaseRouterHandlerArgs<T extends AsyncHandler<any, any>> {
  *
  * `canHandleInput` expects a ResourceIdentifier to indicate it expects the target to have been validated already.
  */
-export abstract class BaseRouterHandler<T extends AsyncHandler<any, any>>
+export abstract class BaseRouterHandler<T extends AsyncHandler<unknown, unknown>>
   extends AsyncHandler<AsyncHandlerInput<T>, AsyncHandlerOutput<T>> {
   protected readonly baseUrlLength: number;
   protected readonly handler: T;
diff --git a/src/storage/LockingResourceStore.ts b/src/storage/LockingResourceStore.ts
index e7ceb8079..562c605c5 100644
--- a/src/storage/LockingResourceStore.ts
+++ b/src/storage/LockingResourceStore.ts
@@ -154,7 +154,7 @@ export class LockingResourceStore implements AtomicResourceStore {
     // Spy on the source to maintain the lock upon reading.
     const data = Object.create(source, {
       read: {
-        value(size: number): any {
+        value(size: number): unknown {
           maintainLock();
           return source.read(size);
         },
diff --git a/src/storage/accessors/FileDataAccessor.ts b/src/storage/accessors/FileDataAccessor.ts
index 8d20f70f2..4545689df 100644
--- a/src/storage/accessors/FileDataAccessor.ts
+++ b/src/storage/accessors/FileDataAccessor.ts
@@ -355,7 +355,7 @@ export class FileDataAccessor implements DataAccessor {
    * @param data - The data to be put in the file.
    */
   protected async writeDataFile(path: string, data: Readable): Promise<void> {
-    return new Promise((resolve, reject): any => {
+    return new Promise((resolve, reject): void => {
       const writeStream = createWriteStream(path);
       data.pipe(writeStream);
       data.on('error', (error): void => {
diff --git a/src/storage/accessors/InMemoryDataAccessor.ts b/src/storage/accessors/InMemoryDataAccessor.ts
index 6b0434203..38c47e79a 100644
--- a/src/storage/accessors/InMemoryDataAccessor.ts
+++ b/src/storage/accessors/InMemoryDataAccessor.ts
@@ -13,7 +13,7 @@ import { isInternalContentType } from '../conversion/ConversionUtil';
 import type { DataAccessor } from './DataAccessor';
 
 interface DataEntry {
-  data: any[];
+  data: unknown[];
   metadata: RepresentationMetadata;
 }
 interface ContainerEntry {
diff --git a/src/storage/conversion/DynamicJsonToTemplateConverter.ts b/src/storage/conversion/DynamicJsonToTemplateConverter.ts
index c715c8a2a..bef7224cb 100644
--- a/src/storage/conversion/DynamicJsonToTemplateConverter.ts
+++ b/src/storage/conversion/DynamicJsonToTemplateConverter.ts
@@ -58,7 +58,7 @@ export class DynamicJsonToTemplateConverter extends RepresentationConverter {
       return representation;
     }
 
-    const contents = JSON.parse(await readableToString(representation.data)) as NodeJS.Dict<any>;
+    const contents = JSON.parse(await readableToString(representation.data)) as NodeJS.Dict<unknown>;
 
     const rendered = await this.templateEngine.handleSafe({ contents, template: { templateFile: typeMap[type] }});
     const metadata = new RepresentationMetadata(representation.metadata, { [CONTENT_TYPE]: type });
diff --git a/src/storage/quota/GlobalQuotaStrategy.ts b/src/storage/quota/GlobalQuotaStrategy.ts
index 0800cbb3d..7227edfc2 100644
--- a/src/storage/quota/GlobalQuotaStrategy.ts
+++ b/src/storage/quota/GlobalQuotaStrategy.ts
@@ -8,7 +8,7 @@ import { QuotaStrategy } from './QuotaStrategy';
 export class GlobalQuotaStrategy extends QuotaStrategy {
   private readonly base: string;
 
-  public constructor(limit: Size, reporter: SizeReporter<any>, base: string) {
+  public constructor(limit: Size, reporter: SizeReporter<unknown>, base: string) {
     super(reporter, limit);
     this.base = base;
   }
diff --git a/src/storage/quota/PodQuotaStrategy.ts b/src/storage/quota/PodQuotaStrategy.ts
index df765103d..2300a34d1 100644
--- a/src/storage/quota/PodQuotaStrategy.ts
+++ b/src/storage/quota/PodQuotaStrategy.ts
@@ -17,7 +17,7 @@ export class PodQuotaStrategy extends QuotaStrategy {
 
   public constructor(
     limit: Size,
-    reporter: SizeReporter<any>,
+    reporter: SizeReporter<unknown>,
     identifierStrategy: IdentifierStrategy,
     accessor: DataAccessor,
   ) {
diff --git a/src/storage/quota/QuotaStrategy.ts b/src/storage/quota/QuotaStrategy.ts
index 8c5d3568e..07efd6095 100644
--- a/src/storage/quota/QuotaStrategy.ts
+++ b/src/storage/quota/QuotaStrategy.ts
@@ -18,10 +18,10 @@ import type { SizeReporter } from '../size-reporter/SizeReporter';
  * This can be bytes, quads, file count, ...
  */
 export abstract class QuotaStrategy {
-  public readonly reporter: SizeReporter<any>;
+  public readonly reporter: SizeReporter<unknown>;
   public readonly limit: Size;
 
-  public constructor(reporter: SizeReporter<any>, limit: Size) {
+  protected constructor(reporter: SizeReporter<unknown>, limit: Size) {
     this.reporter = reporter;
     this.limit = limit;
   }
@@ -87,7 +87,7 @@ export abstract class QuotaStrategy {
     const { reporter } = this;
 
     return guardStream(new PassThrough({
-      async transform(this, chunk: any, enc: string, done: () => void): Promise<void> {
+      async transform(this, chunk: unknown, enc: string, done: () => void): Promise<void> {
         total += await reporter.calculateChunkSize(chunk);
         const availableSpace = await that.getAvailableSpace(identifier);
         if (availableSpace.amount < total) {
diff --git a/src/util/GenericEventEmitter.ts b/src/util/GenericEventEmitter.ts
index d10155f3e..b9a1ab823 100644
--- a/src/util/GenericEventEmitter.ts
+++ b/src/util/GenericEventEmitter.ts
@@ -9,6 +9,7 @@ import { EventEmitter } from 'node:events';
  * Use the {@link createGenericEventEmitterClass} function to generate an event emitter class with the correct typings
  * in case {@link EventEmitter} needs to be extended.
  */
+// eslint-disable-next-line ts/no-explicit-any
 export interface GenericEventEmitter<TEvent extends string | symbol, TFunc extends (...args: any[]) => void>
   extends EventEmitter {
   addListener: (event: TEvent, listener: TFunc) => this;
diff --git a/src/util/IterableUtil.ts b/src/util/IterableUtil.ts
index dda2cf40f..79a57ebeb 100644
--- a/src/util/IterableUtil.ts
+++ b/src/util/IterableUtil.ts
@@ -12,7 +12,7 @@
 export function* map<TIn, TOut>(
   iterable: Iterable<TIn>,
   callbackFn: (element: TIn, index: number) => TOut,
-  thisArg?: any,
+  thisArg?: unknown,
 ): Iterable<TOut> {
   const boundMapFn = callbackFn.bind(thisArg);
   let count = 0;
@@ -31,8 +31,11 @@ export function* map<TIn, TOut>(
  * @param callbackFn - Function that is called to test every element.
  * @param thisArg - Value to use as `this` when executing `callbackFn`.
  */
-export function* filter<T>(iterable: Iterable<T>, callbackFn: (element: T, index: number) => boolean, thisArg?: any):
-Iterable<T> {
+export function* filter<T>(
+  iterable: Iterable<T>,
+  callbackFn: (element: T, index: number) => boolean,
+  thisArg?: unknown,
+): Iterable<T> {
   const boundFilterFn = callbackFn.bind(thisArg);
   let count = 0;
   for (const value of iterable) {
@@ -63,7 +66,7 @@ export function* concat<T>(iterables: Iterable<Iterable<T>>): Iterable<T> {
  * @param callbackFn - Function that is called to test every element.
  * @param thisArg - Value to use as `this` when executing `callbackFn`.
  */
-export function find<T>(iterable: Iterable<T>, callbackFn: (element: T, index: number) => boolean, thisArg?: any):
+export function find<T>(iterable: Iterable<T>, callbackFn: (element: T, index: number) => boolean, thisArg?: unknown):
 T | undefined {
   const boundMapFn = callbackFn.bind(thisArg);
   const count = 0;
diff --git a/src/util/Json.ts b/src/util/Json.ts
new file mode 100644
index 000000000..fa00da4a4
--- /dev/null
+++ b/src/util/Json.ts
@@ -0,0 +1,4 @@
+/**
+ * A JSON object.
+ */
+export type Json = string | number | boolean | NodeJS.Dict<Json> | Json[];
diff --git a/src/util/LockUtils.ts b/src/util/LockUtils.ts
index 970f265d9..5df47f554 100644
--- a/src/util/LockUtils.ts
+++ b/src/util/LockUtils.ts
@@ -12,7 +12,7 @@ const logger = getLoggerFor('LockUtil');
 export async function setJitterTimeout(delay: number, jitter = 0): Promise<void> {
   jitter = Math.max(0, Math.floor(Math.random() * jitter));
   delay = Math.max(0, delay + jitter);
-  return new Promise<void>((resolve): any => setTimeout(resolve, delay));
+  return new Promise<void>((resolve): unknown => setTimeout(resolve, delay));
 }
 
 export interface AttemptSettings {
diff --git a/src/util/PathUtil.ts b/src/util/PathUtil.ts
index cfc2ee9d1..c9c9e6de1 100644
--- a/src/util/PathUtil.ts
+++ b/src/util/PathUtil.ts
@@ -6,6 +6,7 @@ import type { ResourceIdentifier } from '../http/representation/ResourceIdentifi
 import type { HttpRequest } from '../server/HttpRequest';
 import { BadRequestHttpError } from './errors/BadRequestHttpError';
 import { errorTermsToMetadata } from './errors/HttpErrorUtil';
+import type { Json } from './Json';
 
 /**
  * Changes a potential Windows path into a POSIX path.
@@ -305,8 +306,8 @@ export function resolveAssetPath(path = modulePathPlaceholder): string {
 /**
  * Reads the project package.json and returns it.
  */
-export async function readPackageJson(): Promise<Record<string, any>> {
-  return readJson(resolveModulePath('package.json')) as Promise<Record<string, any>>;
+export async function readPackageJson(): Promise<Record<string, Json>> {
+  return readJson(resolveModulePath('package.json')) as Promise<Record<string, Json>>;
 }
 
 /**
diff --git a/src/util/RecordObject.ts b/src/util/RecordObject.ts
index 30994ab91..5528ade2e 100644
--- a/src/util/RecordObject.ts
+++ b/src/util/RecordObject.ts
@@ -2,10 +2,11 @@
  * Helper class for instantiating multiple objects with Components.js.
  * See https://github.com/LinkedSoftwareDependencies/Components.js/issues/26
  */
-// eslint-disable-next-line ts/no-extraneous-class
-export class RecordObject implements Record<string, any> {
-  public constructor(record: Record<string, string> = {}) {
+export class RecordObject implements Record<string, unknown> {
+  public constructor(record: Record<string, unknown> = {}) {
     // eslint-disable-next-line no-constructor-return
     return record;
   }
+
+  [key: string]: unknown;
 }
diff --git a/src/util/SliceStream.ts b/src/util/SliceStream.ts
index f26b1477a..6f8d17d80 100644
--- a/src/util/SliceStream.ts
+++ b/src/util/SliceStream.ts
@@ -57,7 +57,7 @@ export class SliceStream extends Transform {
   }
 
   // eslint-disable-next-line ts/naming-convention
-  public _transform(chunk: any, encoding: BufferEncoding, callback: TransformCallback): void {
+  public _transform(chunk: unknown, encoding: BufferEncoding, callback: TransformCallback): void {
     this.source.pause();
     if (this.writableObjectMode) {
       this.objectSlice(chunk);
@@ -72,12 +72,12 @@ export class SliceStream extends Transform {
   protected binarySlice(chunk: Buffer): void {
     let length = chunk.length;
     if (this.remainingSkip > 0) {
-      chunk = chunk.slice(this.remainingSkip);
+      chunk = chunk.subarray(this.remainingSkip);
       this.remainingSkip -= length - chunk.length;
       length = chunk.length;
     }
     if (length > 0 && this.remainingSkip <= 0) {
-      chunk = chunk.slice(0, this.remainingRead);
+      chunk = chunk.subarray(0, this.remainingRead);
       this.push(chunk);
       this.remainingRead -= length;
       this.checkEnd();
diff --git a/src/util/StreamUtil.ts b/src/util/StreamUtil.ts
index c6222f0c2..03524ff0c 100644
--- a/src/util/StreamUtil.ts
+++ b/src/util/StreamUtil.ts
@@ -10,6 +10,7 @@ import { isHttpRequest } from '../server/HttpRequest';
 import { InternalServerError } from './errors/InternalServerError';
 import type { Guarded } from './GuardedStream';
 import { guardStream } from './GuardedStream';
+import type { Json } from './Json';
 import type { PromiseOrValue } from './PromiseUtil';
 
 export const endOfStream = promisify(eos);
@@ -45,9 +46,9 @@ export async function readableToQuads(stream: Readable): Promise<Store> {
  *
  * @returns The parsed object.
  */
-export async function readJsonStream(stream: Readable): Promise<NodeJS.Dict<any>> {
+export async function readJsonStream(stream: Readable): Promise<Json> {
   const body = await readableToString(stream);
-  return JSON.parse(body) as NodeJS.Dict<any>;
+  return JSON.parse(body) as Json;
 }
 
 /**
@@ -119,16 +120,16 @@ export function pipeSafely<T extends Writable>(
   return guardStream(destination);
 }
 
-export interface AsyncTransformOptions<T = any> extends DuplexOptions {
+export interface AsyncTransformOptions<T = unknown> extends DuplexOptions {
   /**
    * Transforms data from the source by calling the `push` method
    */
-  transform?: (this: Transform, data: T, encoding: string) => PromiseOrValue<any>;
+  transform?: (this: Transform, data: T, encoding: string) => PromiseOrValue<unknown>;
 
   /**
    * Performs any final actions after the source has ended
    */
-  flush?: (this: Transform) => PromiseOrValue<any>;
+  flush?: (this: Transform) => PromiseOrValue<unknown>;
 }
 
 /**
@@ -140,7 +141,7 @@ export interface AsyncTransformOptions<T = any> extends DuplexOptions {
  *
  * @returns The transformed stream
  */
-export function transformSafely<T = any>(
+export function transformSafely<T = unknown>(
   source: NodeJS.ReadableStream,
   {
     transform = function(data): void {
@@ -179,6 +180,6 @@ export function transformSafely<T = any>(
  * @param contents - Data to stream.
  * @param options - Options to pass to the Readable constructor. See {@link Readable.from}.
  */
-export function guardedStreamFrom(contents: string | Iterable<any>, options?: ReadableOptions): Guarded<Readable> {
+export function guardedStreamFrom(contents: string | Iterable<unknown>, options?: ReadableOptions): Guarded<Readable> {
   return guardStream(Readable.from(typeof contents === 'string' ? [ contents ] : contents, options));
 }
diff --git a/src/util/Vocabularies.ts b/src/util/Vocabularies.ts
index 681908a55..594f5b558 100644
--- a/src/util/Vocabularies.ts
+++ b/src/util/Vocabularies.ts
@@ -14,7 +14,7 @@ type ValueVocabulary<TBase extends string, TLocal extends string> =
 /**
  * A {@link ValueVocabulary} where the URI values are {@link NamedNode}s.
  */
-type TermVocabulary<T> = T extends ValueVocabulary<any, any> ? {[K in keyof T]: NamedNode<T[K]> } : never;
+type TermVocabulary<T> = T extends ValueVocabulary<string, string> ? {[K in keyof T]: NamedNode<T[K]> } : never;
 
 /**
  * Contains a namespace and keys linking to the entries in this namespace.
@@ -35,15 +35,15 @@ export type PartialVocabulary<TBase extends string> =
 /**
  * A local name of a {@link Vocabulary}.
  */
-export type VocabularyLocal<T> = T extends Vocabulary<any, infer TKey> ? TKey : never;
+export type VocabularyLocal<T> = T extends Vocabulary<string, infer TKey> ? TKey : never;
 /**
  * A URI string entry of a {@link Vocabulary}.
  */
-export type VocabularyValue<T> = T extends Vocabulary<any, infer TKey> ? T[TKey] : never;
+export type VocabularyValue<T> = T extends Vocabulary<string, infer TKey> ? T[TKey] : never;
 /**
  * A {@link NamedNode} entry of a {@link Vocabulary}.
  */
-export type VocabularyTerm<T> = T extends Vocabulary<any, infer TKey> ? T['terms'][TKey] : never;
+export type VocabularyTerm<T> = T extends Vocabulary<string, infer TKey> ? T['terms'][TKey] : never;
 
 /**
  * Creates a {@link ValueVocabulary} with the given `baseUri` as namespace and all `localNames` as entries.
diff --git a/src/util/errors/HttpError.ts b/src/util/errors/HttpError.ts
index aeb9b440f..ed039c105 100644
--- a/src/util/errors/HttpError.ts
+++ b/src/util/errors/HttpError.ts
@@ -44,7 +44,7 @@ export class HttpError<T extends number = number> extends Error implements HttpE
     this.generateMetadata();
   }
 
-  public static isInstance(error: any): error is HttpError {
+  public static isInstance(error: unknown): error is HttpError {
     return isError(error) &&
       typeof (error as HttpError).statusCode === 'number' &&
         Boolean((error as HttpError).metadata);
@@ -77,7 +77,7 @@ export interface HttpErrorClass<TCode extends number = number> {
   /**
    * Checks if the given error is an instance of this class.
    */
-  readonly isInstance: (error: any) => error is HttpError<TCode>;
+  readonly isInstance: (error: unknown) => error is HttpError<TCode>;
 }
 
 /**
@@ -99,7 +99,7 @@ export function generateHttpErrorClass<TCode extends number>(statusCode: TCode,
       super(statusCode, name, message, options);
     }
 
-    public static isInstance(error: any): error is SpecificHttpError {
+    public static isInstance(error: unknown): error is SpecificHttpError {
       return HttpError.isInstance(error) && error.statusCode === statusCode;
     }
   };
diff --git a/src/util/errors/RedirectHttpError.ts b/src/util/errors/RedirectHttpError.ts
index 622e12ca0..64847d400 100644
--- a/src/util/errors/RedirectHttpError.ts
+++ b/src/util/errors/RedirectHttpError.ts
@@ -16,7 +16,7 @@ export class RedirectHttpError<TCode extends number = number> extends HttpError<
     this.metadata.add(SOLID_HTTP.terms.location, DataFactory.namedNode(location));
   }
 
-  public static isInstance(error: any): error is RedirectHttpError {
+  public static isInstance(error: unknown): error is RedirectHttpError {
     return HttpError.isInstance(error) && typeof (error as RedirectHttpError).location === 'string';
   }
 }
@@ -46,7 +46,7 @@ export function generateRedirectHttpErrorClass<TCode extends number>(
       super(code, name, location, message, options);
     }
 
-    public static isInstance(error: any): error is SpecificRedirectHttpError {
+    public static isInstance(error: unknown): error is SpecificRedirectHttpError {
       return RedirectHttpError.isInstance(error) && error.statusCode === code;
     }
   };
diff --git a/src/util/errors/SystemError.ts b/src/util/errors/SystemError.ts
index 45604b201..44a9da1c2 100644
--- a/src/util/errors/SystemError.ts
+++ b/src/util/errors/SystemError.ts
@@ -26,7 +26,7 @@ export interface SystemError extends Error {
   /**
    * If present, extra details about the error condition.
    */
-  info?: any;
+  info?: unknown;
   /**
    * If present, the file path when reporting a file system error.
    */
diff --git a/src/util/handlers/ArrayUnionHandler.ts b/src/util/handlers/ArrayUnionHandler.ts
index 243b9b377..b3e4e1170 100644
--- a/src/util/handlers/ArrayUnionHandler.ts
+++ b/src/util/handlers/ArrayUnionHandler.ts
@@ -4,7 +4,7 @@ import { UnionHandler } from './UnionHandler';
 /**
  * A utility handler that concatenates the results of all its handlers into a single result.
  */
-export class ArrayUnionHandler<T extends AsyncHandler<any, any[]>> extends UnionHandler<T> {
+export class ArrayUnionHandler<T extends AsyncHandler<unknown, unknown[]>> extends UnionHandler<T> {
   public constructor(handlers: T[], requireAll?: boolean, ignoreErrors?: boolean) {
     super(handlers, requireAll, ignoreErrors);
   }
diff --git a/src/util/handlers/AsyncHandler.ts b/src/util/handlers/AsyncHandler.ts
index e0edf3a89..a454d2ab9 100644
--- a/src/util/handlers/AsyncHandler.ts
+++ b/src/util/handlers/AsyncHandler.ts
@@ -1,6 +1,6 @@
 type Awaited<T> = T extends PromiseLike<infer U> ? U : T;
-export type AsyncHandlerInput<T extends AsyncHandler<any, any>> = Parameters<T['handle']>[0];
-export type AsyncHandlerOutput<T extends AsyncHandler<any, any>> = Awaited<ReturnType<T['handle']>>;
+export type AsyncHandlerInput<T extends AsyncHandler<unknown, unknown>> = Parameters<T['handle']>[0];
+export type AsyncHandlerOutput<T extends AsyncHandler<unknown, unknown>> = Awaited<ReturnType<T['handle']>>;
 
 /**
  * Simple interface for classes that can potentially handle a specific kind of data asynchronously.
diff --git a/src/util/handlers/CachedHandler.ts b/src/util/handlers/CachedHandler.ts
index 1b4a59b73..0f916a7be 100644
--- a/src/util/handlers/CachedHandler.ts
+++ b/src/util/handlers/CachedHandler.ts
@@ -12,7 +12,7 @@ type NestedMap<TOut> = TOut | WeakMap<object, NestedMap<TOut>>;
  * This also means that the cache key needs to be an object.
  * Errors will be thrown in case a primitive is used.
  */
-export class CachedHandler<TIn extends Record<string, any>, TOut = void> extends AsyncHandler<TIn, TOut> {
+export class CachedHandler<TIn extends Record<string, unknown>, TOut = void> extends AsyncHandler<TIn, TOut> {
   private readonly source: AsyncHandler<TIn, TOut>;
   private readonly fields?: [keyof TIn, ...(keyof TIn)[]];
 
diff --git a/src/util/handlers/StaticHandler.ts b/src/util/handlers/StaticHandler.ts
index 6c2cd98ab..5c49ca1aa 100644
--- a/src/util/handlers/StaticHandler.ts
+++ b/src/util/handlers/StaticHandler.ts
@@ -7,7 +7,7 @@ import { AsyncHandler } from './AsyncHandler';
  * The generic type extends `any` due to Components.js requirements.
  */
 // eslint-disable-next-line ts/no-unnecessary-type-constraint
-export class StaticHandler<T extends any = void> extends AsyncHandler<any, T> {
+export class StaticHandler<T extends unknown = void> extends AsyncHandler<unknown, T> {
   private readonly value?: T;
 
   public constructor(value?: T) {
diff --git a/src/util/handlers/StaticThrowHandler.ts b/src/util/handlers/StaticThrowHandler.ts
index 4df8a3f1d..1928f61d8 100644
--- a/src/util/handlers/StaticThrowHandler.ts
+++ b/src/util/handlers/StaticThrowHandler.ts
@@ -4,7 +4,7 @@ import { AsyncHandler } from './AsyncHandler';
 /**
  * Utility handler that can handle all input and always throws the given error.
  */
-export class StaticThrowHandler extends AsyncHandler<any, never> {
+export class StaticThrowHandler extends AsyncHandler<unknown, never> {
   private readonly error: HttpError;
 
   public constructor(error: HttpError) {
diff --git a/src/util/handlers/UnionHandler.ts b/src/util/handlers/UnionHandler.ts
index 239ddd839..c508a393f 100644
--- a/src/util/handlers/UnionHandler.ts
+++ b/src/util/handlers/UnionHandler.ts
@@ -8,7 +8,7 @@ import { filterHandlers, findHandler } from './HandlerUtil';
  * Will run the handlers and then call the abstract `combine` function with the results,
  * which then generates the handler's output.
  */
-export abstract class UnionHandler<T extends AsyncHandler<any, any>> extends
+export abstract class UnionHandler<T extends AsyncHandler<unknown, unknown>> extends
   AsyncHandler<AsyncHandlerInput<T>, AsyncHandlerOutput<T>> {
   protected readonly handlers: T[];
   private readonly requireAll: boolean;
diff --git a/src/util/handlers/UnsupportedAsyncHandler.ts b/src/util/handlers/UnsupportedAsyncHandler.ts
index 7099ea5d8..230f898eb 100644
--- a/src/util/handlers/UnsupportedAsyncHandler.ts
+++ b/src/util/handlers/UnsupportedAsyncHandler.ts
@@ -4,7 +4,7 @@ import { AsyncHandler } from './AsyncHandler';
 /**
  * Handler that does not support any input and will always throw an error.
  */
-export class UnsupportedAsyncHandler extends AsyncHandler<any, never> {
+export class UnsupportedAsyncHandler extends AsyncHandler<unknown, never> {
   private readonly errorMessage?: string;
 
   public constructor(errorMessage?: string) {
diff --git a/src/util/map/HashMap.ts b/src/util/map/HashMap.ts
index 3bddcd44c..1d4194eec 100644
--- a/src/util/map/HashMap.ts
+++ b/src/util/map/HashMap.ts
@@ -6,7 +6,7 @@ type Entry<TKey, TVal> = { key: TKey; value: TVal };
  * A {@link Map} implementation that maps the Key object to a string using the provided hash function.
  * This ensures that equal objects that are not the same instance are mapped to the same value.
  */
-export class HashMap<TKey = any, TVal = any> implements Map<TKey, TVal> {
+export class HashMap<TKey = unknown, TVal = unknown> implements Map<TKey, TVal> {
   private readonly hashMap: Map<string, Entry<TKey, TVal>>;
   private readonly hashFn: (key: TKey) => string;
 
@@ -64,7 +64,7 @@ export class HashMap<TKey = any, TVal = any> implements Map<TKey, TVal> {
     }
   }
 
-  public forEach(callbackfn: (value: TVal, key: TKey, map: Map<TKey, TVal>) => void, thisArg?: any): void {
+  public forEach(callbackfn: (value: TVal, key: TKey, map: Map<TKey, TVal>) => void, thisArg?: unknown): void {
     for (const [ key, value ] of this) {
       callbackfn.bind(thisArg)(value, key, this);
     }
diff --git a/src/util/map/MapUtil.ts b/src/util/map/MapUtil.ts
index c24726ee0..c18400c37 100644
--- a/src/util/map/MapUtil.ts
+++ b/src/util/map/MapUtil.ts
@@ -2,22 +2,22 @@ import { resolvePromiseOrValue } from '../PromiseUtil';
 import type { PromiseOrValue } from '../PromiseUtil';
 import type { SetMultiMap } from './SetMultiMap';
 
-export type ArrayElement<TArray extends readonly any[]> = TArray[number];
+export type ArrayElement<TArray extends readonly unknown[]> = TArray[number];
 export type EmptyObject = Record<string, never>;
 
-export type MapKey<T> = T extends Map<infer TKey, any> ? TKey : never;
-export type MapValue<T> = T extends Map<any, infer TValue> ? TValue : never;
-export type MapEntry<T> = T extends Map<any, any> ? [MapKey<T>, MapValue<T>] : never;
+export type MapKey<T> = T extends Map<infer TKey, unknown> ? TKey : never;
+export type MapValue<T> = T extends Map<unknown, infer TValue> ? TValue : never;
+export type MapEntry<T> = T extends Map<unknown, unknown> ? [MapKey<T>, MapValue<T>] : never;
 
 /**
  * A simplified version of {@link MapConstructor} that only allows creating an empty {@link Map}.
  */
-export type EmptyMapConstructor = new() => Map<any, any>;
+export type EmptyMapConstructor = new() => Map<unknown, unknown>;
 
 /**
  * Options describing the necessary changes when calling {@link modify}.
  */
-export type ModifyOptions<T extends SetMultiMap<any, any>> = {
+export type ModifyOptions<T extends SetMultiMap<unknown, unknown>> = {
   /**
    * Entries that need to be added to the Map.
    */
@@ -35,6 +35,7 @@ export type ModifyOptions<T extends SetMultiMap<any, any>> = {
  * @param map - Map to start from.
  * @param options - {@link ModifyOptions} describing the necessary changes.
  */
+// eslint-disable-next-line ts/no-explicit-any
 export function modify<T extends SetMultiMap<any, any>>(map: T, options: ModifyOptions<T>): T {
   for (const key of options.remove ?? []) {
     map.delete(key);
diff --git a/src/util/map/SetMultiMap.ts b/src/util/map/SetMultiMap.ts
index a0a15f30e..8b9a2b668 100644
--- a/src/util/map/SetMultiMap.ts
+++ b/src/util/map/SetMultiMap.ts
@@ -55,5 +55,5 @@ export interface SetMultiMap<TKey, TVal> extends Map<TKey, TVal | ReadonlySet<TV
   /**
    * Loops over all key/value bindings.
    */
-  forEach: (callbackfn: (value: TVal, key: TKey, map: SetMultiMap<TKey, TVal>) => void, thisArg?: any) => void;
+  forEach: (callbackfn: (value: TVal, key: TKey, map: SetMultiMap<TKey, TVal>) => void, thisArg?: unknown) => void;
 }
diff --git a/src/util/map/WrappedSetMultiMap.ts b/src/util/map/WrappedSetMultiMap.ts
index 55d6d6ace..8636b8478 100644
--- a/src/util/map/WrappedSetMultiMap.ts
+++ b/src/util/map/WrappedSetMultiMap.ts
@@ -138,7 +138,7 @@ export class WrappedSetMultiMap<TKey, TVal> implements SetMultiMap<TKey, TVal> {
     return this.map.values();
   }
 
-  public forEach(callbackfn: (value: TVal, key: TKey, map: SetMultiMap<TKey, TVal>) => void, thisArg?: any): void {
+  public forEach(callbackfn: (value: TVal, key: TKey, map: SetMultiMap<TKey, TVal>) => void, thisArg?: unknown): void {
     for (const [ key, value ] of this) {
       callbackfn.bind(thisArg)(value, key, this);
     }
diff --git a/src/util/templates/ChainedTemplateEngine.ts b/src/util/templates/ChainedTemplateEngine.ts
index 3e20faec1..71dc43c57 100644
--- a/src/util/templates/ChainedTemplateEngine.ts
+++ b/src/util/templates/ChainedTemplateEngine.ts
@@ -10,7 +10,7 @@ import Dict = NodeJS.Dict;
  * All subsequent engines will be called with no template parameter.
  * Contents will still be passed along and another entry will be added for the body of the previous output.
  */
-export class ChainedTemplateEngine<T extends Dict<any> = Dict<any>> extends TemplateEngine<T> {
+export class ChainedTemplateEngine<T extends Dict<unknown> = Dict<unknown>> extends TemplateEngine<T> {
   private readonly firstEngine: TemplateEngine<T>;
   private readonly chainedEngines: TemplateEngine[];
   private readonly renderedName: string;
diff --git a/src/util/templates/EjsTemplateEngine.ts b/src/util/templates/EjsTemplateEngine.ts
index 3c86e8566..73866cc6f 100644
--- a/src/util/templates/EjsTemplateEngine.ts
+++ b/src/util/templates/EjsTemplateEngine.ts
@@ -7,7 +7,7 @@ import Dict = NodeJS.Dict;
 /**
  * Fills in EJS templates.
  */
-export class EjsTemplateEngine<T extends Dict<any> = Dict<any>> extends ExtensionBasedTemplateEngine<T> {
+export class EjsTemplateEngine<T extends Dict<unknown> = Dict<unknown>> extends ExtensionBasedTemplateEngine<T> {
   private readonly baseUrl: string;
 
   /**
diff --git a/src/util/templates/ExtensionBasedTemplateEngine.ts b/src/util/templates/ExtensionBasedTemplateEngine.ts
index 94ed5d1fb..8aab8e121 100644
--- a/src/util/templates/ExtensionBasedTemplateEngine.ts
+++ b/src/util/templates/ExtensionBasedTemplateEngine.ts
@@ -8,7 +8,7 @@ import Dict = NodeJS.Dict;
 /**
  * Parent class for template engines that accept handling based on whether the template extension is supported.
  */
-export abstract class ExtensionBasedTemplateEngine<T extends Dict<any> = Dict<any>> extends TemplateEngine<T> {
+export abstract class ExtensionBasedTemplateEngine<T extends Dict<unknown> = Dict<unknown>> extends TemplateEngine<T> {
   protected readonly supportedExtensions: string[];
 
   /**
diff --git a/src/util/templates/HandlebarsTemplateEngine.ts b/src/util/templates/HandlebarsTemplateEngine.ts
index c4f4992ab..f62e0dd79 100644
--- a/src/util/templates/HandlebarsTemplateEngine.ts
+++ b/src/util/templates/HandlebarsTemplateEngine.ts
@@ -7,7 +7,7 @@ import Dict = NodeJS.Dict;
 /**
  * Fills in Handlebars templates.
  */
-export class HandlebarsTemplateEngine<T extends Dict<any> = Dict<any>> extends ExtensionBasedTemplateEngine<T> {
+export class HandlebarsTemplateEngine<T extends Dict<unknown> = Dict<unknown>> extends ExtensionBasedTemplateEngine<T> {
   private readonly baseUrl: string;
 
   /**
diff --git a/src/util/templates/StaticTemplateEngine.ts b/src/util/templates/StaticTemplateEngine.ts
index b1191c620..3a3bc4913 100644
--- a/src/util/templates/StaticTemplateEngine.ts
+++ b/src/util/templates/StaticTemplateEngine.ts
@@ -6,7 +6,7 @@ import Dict = NodeJS.Dict;
 /**
  * Template engine that renders output based on a static template file.
  */
-export class StaticTemplateEngine<T extends Dict<any> = Dict<any>> extends TemplateEngine<T> {
+export class StaticTemplateEngine<T extends Dict<unknown> = Dict<unknown>> extends TemplateEngine<T> {
   private readonly template: Template;
   private readonly templateEngine: AsyncHandler<TemplateEngineInput<T>, string>;
 
diff --git a/src/util/templates/TemplateEngine.ts b/src/util/templates/TemplateEngine.ts
index 3b51af096..4e5100912 100644
--- a/src/util/templates/TemplateEngine.ts
+++ b/src/util/templates/TemplateEngine.ts
@@ -31,5 +31,5 @@ export interface TemplateEngineInput<T> {
  * Generic interface for classes that implement a template engine.
  * A template engine renders content into a template.
  */
-export abstract class TemplateEngine<T extends Dict<any> = Dict<any>>
+export abstract class TemplateEngine<T extends Dict<unknown> = Dict<unknown>>
   extends AsyncHandler<TemplateEngineInput<T>, string> {}