diff --git a/x/bandoracle/types/codec.go b/x/bandoracle/types/codec.go
index c189264a3..4faf682ab 100644
--- a/x/bandoracle/types/codec.go
+++ b/x/bandoracle/types/codec.go
@@ -21,5 +21,6 @@ func RegisterInterfaces(registry cdctypes.InterfaceRegistry) {
 
 var (
 	Amino     = codec.NewLegacyAmino()
-	ModuleCdc = codec.NewAminoCodec(Amino)
+	// ModuleCdc = codec.NewAminoCodec(Amino)
+	ModuleCdc = codec.NewProtoCodec(cdctypes.NewInterfaceRegistry())
 )