diff --git a/lib/api/grpc_client.dart b/lib/api/grpc_client.dart
index 46b42ab..0f75da6 100644
--- a/lib/api/grpc_client.dart
+++ b/lib/api/grpc_client.dart
@@ -2,7 +2,7 @@ import 'dart:async';
 
 import 'package:fixnum/fixnum.dart';
 import 'package:grpc/grpc.dart';
-import 'package:protobuf/protobuf.dart' as $protobuf;
+import 'package:protobuf/well_known_types/google/protobuf/timestamp.pb.dart' as $timestamp;
 
 import '../generated/cqrs_services.pb.dart' as $pb;
 import '../generated/cqrs_services.pbgrpc.dart';
@@ -298,8 +298,8 @@ class GrpcCqrsApiClient {
 
 // Extension to convert DateTime to protobuf Timestamp
 extension DateTimeToProto on DateTime {
-  $pb.Timestamp toProto3Timestamp() {
-    return $pb.Timestamp()
+  $timestamp.Timestamp toProto3Timestamp() {
+    return $timestamp.Timestamp()
       ..seconds = Int64(millisecondsSinceEpoch ~/ 1000)
       ..nanos = ((millisecondsSinceEpoch % 1000) * 1000000).toInt();
   }