diff --git a/app/keepers/keepers.go b/app/keepers/keepers.go
index 9069925..0be8d44 100644
--- a/app/keepers/keepers.go
+++ b/app/keepers/keepers.go
@@ -278,6 +278,7 @@ func NewAppKeeper(
 	appKeepers.FeeGrantKeeper = &feeGrantKeeper
 
 	authzKeeper := authzkeeper.NewKeeper(runtime.NewKVStoreService(appKeepers.keys[authzkeeper.StoreKey]), appCodec, bApp.MsgServiceRouter(), appKeepers.AccountKeeper)
+	authzKeeper = authzKeeper.SetBankKeeper(appKeepers.BankKeeper)
 	appKeepers.AuthzKeeper = &authzKeeper
 
 	groupConfig := group.DefaultConfig()
diff --git a/app/upgrade.go b/app/upgrade.go
index 02ee3d2..c250293 100644
--- a/app/upgrade.go
+++ b/app/upgrade.go
@@ -9,7 +9,7 @@ import (
 	opchildtypes "github.com/initia-labs/OPinit/x/opchild/types"
 )
 
-const upgradeName = "0.6.3"
+const upgradeName = "0.6.4"
 
 // RegisterUpgradeHandlers returns upgrade handlers
 func (app *MinitiaApp) RegisterUpgradeHandlers(cfg module.Configurator) {