diff --git a/package-lock.json b/package-lock.json
index 8e019b64..cc7ab7c9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,8 +9,8 @@
       "version": "6.1.0",
       "license": "LGPL-3.0+",
       "devDependencies": {
-        "@noble/ciphers": "^1.0.0",
-        "@noble/curves": "^1.6.0",
+        "@noble/ciphers": "^1.2.1",
+        "@noble/curves": "^1.8.1",
         "@noble/hashes": "^1.5.0",
         "@openpgp/jsdoc": "^3.6.11",
         "@openpgp/seek-bzip": "^1.0.5-git",
@@ -929,9 +929,9 @@
       }
     },
     "node_modules/@noble/ciphers": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-1.0.0.tgz",
-      "integrity": "sha512-wH5EHOmLi0rEazphPbecAzmjd12I6/Yv/SiHdkA9LSycsQk7RuuTp7am5/o62qYr0RScE7Pc9icXGBbsr6cesA==",
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-1.2.1.tgz",
+      "integrity": "sha512-rONPWMC7PeExE077uLE4oqWrZ1IvAfz3oH9LibVAcVCopJiA9R62uavnbEzdkVmJYI6M6Zgkbeb07+tWjlq2XA==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -942,12 +942,13 @@
       }
     },
     "node_modules/@noble/curves": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/@noble/curves/-/curves-1.6.0.tgz",
-      "integrity": "sha512-TlaHRXDehJuRNR9TfZDNQ45mMEd5dwUwmicsafcIX4SsNiqnCHKjE/1alYPd/lDRVhxdhUAlv8uEhMCI5zjIJQ==",
+      "version": "1.8.1",
+      "resolved": "https://registry.npmjs.org/@noble/curves/-/curves-1.8.1.tgz",
+      "integrity": "sha512-warwspo+UYUPep0Q+vtdVB4Ugn8GGQj8iyB3gnRWsztmUHTI3S1nhdiWNsPUGL0vud7JlRRk1XEu7Lq1KGTnMQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "@noble/hashes": "1.5.0"
+        "@noble/hashes": "1.7.1"
       },
       "engines": {
         "node": "^14.21.3 || >=16"
@@ -957,10 +958,11 @@
       }
     },
     "node_modules/@noble/hashes": {
-      "version": "1.5.0",
-      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.5.0.tgz",
-      "integrity": "sha512-1j6kQFb7QRru7eKN3ZDvRcP13rugwdxZqCjbiAVZfIJwgj2A65UmT4TgARXGlXgnRkORLTDTrO19ZErt7+QXgA==",
+      "version": "1.7.1",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.7.1.tgz",
+      "integrity": "sha512-B8XBPsn4vT/KJAGqDzbwztd+6Yte3P4V7iafm24bxgDe/mlRuK6xmWPuCNrKt2vDafZ8MfJLlchDG/vYafQEjQ==",
       "dev": true,
+      "license": "MIT",
       "engines": {
         "node": "^14.21.3 || >=16"
       },
diff --git a/package.json b/package.json
index b5eb74b7..fc1399cf 100644
--- a/package.json
+++ b/package.json
@@ -62,8 +62,8 @@
     "postversion": "git push --follow-tags && npm publish"
   },
   "devDependencies": {
-    "@noble/ciphers": "^1.0.0",
-    "@noble/curves": "^1.6.0",
+    "@noble/ciphers": "^1.2.1",
+    "@noble/curves": "^1.8.1",
     "@noble/hashes": "^1.5.0",
     "@openpgp/jsdoc": "^3.6.11",
     "@openpgp/seek-bzip": "^1.0.5-git",
diff --git a/src/crypto/cipherMode/ocb.js b/src/crypto/cipherMode/ocb.js
index e8b8cabf..397a4fe6 100644
--- a/src/crypto/cipherMode/ocb.js
+++ b/src/crypto/cipherMode/ocb.js
@@ -73,9 +73,8 @@ async function OCB(cipher, key) {
   // `encipher` and `decipher` cannot be async, since `crypt` shares state across calls,
   // hence its execution cannot be broken up.
   // As a result, WebCrypto cannot currently be used for `encipher`.
-  const aes = nobleAesCbc(key, zeroBlock, { disablePadding: true });
-  const encipher = block => aes.encrypt(block);
-  const decipher = block => aes.decrypt(block);
+  const encipher = block => nobleAesCbc(key, zeroBlock, { disablePadding: true }).encrypt(block);
+  const decipher = block => nobleAesCbc(key, zeroBlock, { disablePadding: true }).decrypt(block);
   let mask;
 
   constructKeyVariables(cipher, key);
diff --git a/test/crypto/ecdh.js b/test/crypto/ecdh.js
index 72a8892b..997538a9 100644
--- a/test/crypto/ecdh.js
+++ b/test/crypto/ecdh.js
@@ -267,9 +267,9 @@ export default () => describe('ECDH key exchange @lightweight', function () {
     for (const { vector } of vectors) {
       const lowOrderPoint = util.hexToUint8Array(vector);
       const { A: K_A, k: a } = await elliptic_curves.ecdhX.generate(openpgp.enums.publicKey.x448);
-      await expect(elliptic_curves.ecdhX.encrypt(openpgp.enums.publicKey.x448, data, lowOrderPoint)).to.be.rejectedWith(/Invalid private or public key received|expected valid u|low order point/);
+      await expect(elliptic_curves.ecdhX.encrypt(openpgp.enums.publicKey.x448, data, lowOrderPoint)).to.be.rejectedWith(/invalid private or public key received|expected valid u|low order point/);
       const dummyWrappedKey = new Uint8Array(32); // expected to be unused
-      await expect(elliptic_curves.ecdhX.decrypt(openpgp.enums.publicKey.x448, lowOrderPoint, dummyWrappedKey, K_A, a)).to.be.rejectedWith(/Invalid private or public key received|expected valid u|low order point/);
+      await expect(elliptic_curves.ecdhX.decrypt(openpgp.enums.publicKey.x448, lowOrderPoint, dummyWrappedKey, K_A, a)).to.be.rejectedWith(/invalid private or public key received|expected valid u|low order point/);
     }
   });