diff --git a/test/auth_code_test.dart b/test/auth_code_test.dart
index 24ed0533..1c7ca8d7 100644
--- a/test/auth_code_test.dart
+++ b/test/auth_code_test.dart
@@ -1,10 +1,10 @@
 import 'dart:async';
 import 'dart:collection';
+import 'dart:convert';
 import 'package:angel_framework/angel_framework.dart';
 import 'package:angel_framework/http.dart';
 import 'package:angel_oauth2/angel_oauth2.dart';
 import 'package:angel_test/angel_test.dart';
-import 'package:dart2_constant/convert.dart';
 import 'package:logging/logging.dart';
 import 'package:oauth2/oauth2.dart' as oauth2;
 import 'package:test/test.dart';
diff --git a/test/client_credentials_test.dart b/test/client_credentials_test.dart
index 939591f5..9d756e9e 100644
--- a/test/client_credentials_test.dart
+++ b/test/client_credentials_test.dart
@@ -1,9 +1,9 @@
 import 'dart:async';
+import 'dart:convert';
 import 'package:angel_framework/angel_framework.dart';
 import 'package:angel_test/angel_test.dart';
 import 'package:angel_oauth2/angel_oauth2.dart';
 import 'package:angel_validate/angel_validate.dart';
-import 'package:dart2_constant/convert.dart';
 import 'package:test/test.dart';
 import 'common.dart';