diff --git a/testutil/keeper/machine.go b/testutil/keeper/machine.go
index 88683d2..46d2550 100644
--- a/testutil/keeper/machine.go
+++ b/testutil/keeper/machine.go
@@ -14,6 +14,8 @@ import (
 	"github.com/cosmos/cosmos-sdk/store"
 	storetypes "github.com/cosmos/cosmos-sdk/store/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
+	govtypes "github.com/cosmos/cosmos-sdk/x/gov/types"
 	typesparams "github.com/cosmos/cosmos-sdk/x/params/types"
 	"github.com/stretchr/testify/require"
 )
@@ -58,6 +60,7 @@ func MachineKeeper(t testing.TB) (*keeper.Keeper, sdk.Context) {
 		addressStoreKey,
 		memStoreKey,
 		paramsSubspace,
+		authtypes.NewModuleAddress(govtypes.ModuleName).String(),
 	)
 
 	ctx := sdk.NewContext(stateStore, tmproto.Header{}, false, log.NewNopLogger())
diff --git a/x/machine/client/cli/tx_update_params.go b/x/machine/client/cli/tx_update_params.go
index 377bbe8..b6138e6 100644
--- a/x/machine/client/cli/tx_update_params.go
+++ b/x/machine/client/cli/tx_update_params.go
@@ -4,6 +4,7 @@ import (
 	"strconv"
 
 	"encoding/json"
+
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/client/flags"
 	"github.com/cosmos/cosmos-sdk/client/tx"
@@ -32,7 +33,7 @@ func CmdUpdateParams() *cobra.Command {
 
 			msg := types.NewMsgUpdateParams(
 				clientCtx.GetFromAddress().String(),
-				argParams,
+				*argParams,
 			)
 			if err := msg.ValidateBasic(); err != nil {
 				return err
diff --git a/x/machine/keeper/keeper.go b/x/machine/keeper/keeper.go
index 499b9d4..8606de2 100644
--- a/x/machine/keeper/keeper.go
+++ b/x/machine/keeper/keeper.go
@@ -52,6 +52,7 @@ func NewKeeper(
 		addressIndexStoreKey:          addressIndexStoreKey,
 		memKey:                        memKey,
 		paramstore:                    ps,
+		authority:                     authority,
 	}
 }
 
diff --git a/x/machine/types/message_update_params.go b/x/machine/types/message_update_params.go
index 26174ca..9a4e800 100644
--- a/x/machine/types/message_update_params.go
+++ b/x/machine/types/message_update_params.go
@@ -9,7 +9,7 @@ const TypeMsgUpdateParams = "update_params"
 
 var _ sdk.Msg = &MsgUpdateParams{}
 
-func NewMsgUpdateParams(authority string, params *Params) *MsgUpdateParams {
+func NewMsgUpdateParams(authority string, params Params) *MsgUpdateParams {
 	return &MsgUpdateParams{
 		Authority: authority,
 		Params:    params,