diff --git a/packages/firebase_app_check/firebase_app_check/example/pubspec.yaml b/packages/firebase_app_check/firebase_app_check/example/pubspec.yaml
index 2af1d6c4c6db..6849b338649d 100644
--- a/packages/firebase_app_check/firebase_app_check/example/pubspec.yaml
+++ b/packages/firebase_app_check/firebase_app_check/example/pubspec.yaml
@@ -6,7 +6,7 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: '>=2.7.0 <3.0.0'
 
 dependencies:
   cupertino_icons: ^0.1.2
@@ -30,7 +30,7 @@ dependency_overrides:
     path: ../../../firebase_core/firebase_core_web
 
 dev_dependencies:
-  drive: 0.1.0
+  drive: ^1.0.0-1.0.nullsafety.1
   flutter_driver:
     sdk: flutter
   test: any
diff --git a/packages/firebase_app_check/firebase_app_check/example/test_driver/firebase_app_check_e2e.dart b/packages/firebase_app_check/firebase_app_check/example/test_driver/firebase_app_check_e2e.dart
index c39055c11ae1..c38604acad9d 100644
--- a/packages/firebase_app_check/firebase_app_check/example/test_driver/firebase_app_check_e2e.dart
+++ b/packages/firebase_app_check/firebase_app_check/example/test_driver/firebase_app_check_e2e.dart
@@ -1,6 +1,3 @@
-// ignore_for_file: require_trailing_commas
-// @dart = 2.9
-
 // Copyright 2021, the Chromium project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
diff --git a/packages/firebase_app_check/firebase_app_check/example/test_driver/firebase_app_check_e2e_test.dart b/packages/firebase_app_check/firebase_app_check/example/test_driver/firebase_app_check_e2e_test.dart
index 2d22ba44a73f..bb4e596d9ec0 100644
--- a/packages/firebase_app_check/firebase_app_check/example/test_driver/firebase_app_check_e2e_test.dart
+++ b/packages/firebase_app_check/firebase_app_check/example/test_driver/firebase_app_check_e2e_test.dart
@@ -1,5 +1,3 @@
-// ignore_for_file: require_trailing_commas
-// @dart=2.9
 // Copyright 2021, the Chromium project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
diff --git a/packages/firebase_core/firebase_core/example/pubspec.yaml b/packages/firebase_core/firebase_core/example/pubspec.yaml
index 8974871fa72b..2f9ad9ba2905 100644
--- a/packages/firebase_core/firebase_core/example/pubspec.yaml
+++ b/packages/firebase_core/firebase_core/example/pubspec.yaml
@@ -2,7 +2,7 @@ name: firebase_core_example
 description: Demonstrates how to use the firebase_core plugin.
 
 environment:
-  sdk: ">=2.12.0 <3.0.0"
+  sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
   firebase_core:
@@ -17,7 +17,7 @@ dependency_overrides:
     path: ../../firebase_core_web
 
 dev_dependencies:
-  e2e: ^0.6.1
+  drive: ^1.0.0-1.0.nullsafety.1
   flutter_driver:
     sdk: flutter
   flutter_test:
diff --git a/packages/firebase_core/firebase_core/example/test_driver/firebase_core_e2e.dart b/packages/firebase_core/firebase_core/example/test_driver/firebase_core_e2e.dart
index 05a9a6aea6da..4712c2df5ffd 100644
--- a/packages/firebase_core/firebase_core/example/test_driver/firebase_core_e2e.dart
+++ b/packages/firebase_core/firebase_core/example/test_driver/firebase_core_e2e.dart
@@ -1,23 +1,22 @@
-// ignore_for_file: require_trailing_commas
-// @dart = 2.9
-
 // Copyright 2019, the Chromium project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// @dart=2.9
-
 import 'dart:io';
-import 'package:e2e/e2e.dart';
 import 'package:firebase_core/firebase_core.dart';
 import 'package:firebase_core_platform_interface/firebase_core_platform_interface.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-void main() {
-  E2EWidgetsFlutterBinding.ensureInitialized();
+import 'package:drive/drive.dart' as drive;
+
+void main() => drive.main(testsMain);
+
+void testsMain() {
+  TestWidgetsFlutterBinding.ensureInitialized();
 
   String testAppName = 'TestApp';
-  FirebaseOptions testAppOptions;
+  FirebaseOptions? testAppOptions;
+
   if (Platform.isIOS || Platform.isMacOS) {
     testAppOptions = const FirebaseOptions(
       appId: '1:448618578101:ios:0b650370bb29e29cac3efc',
diff --git a/packages/firebase_core/firebase_core/example/test_driver/firebase_core_e2e_test.dart b/packages/firebase_core/firebase_core/example/test_driver/firebase_core_e2e_test.dart
index f91ce3f140cb..f9c0fa99a519 100644
--- a/packages/firebase_core/firebase_core/example/test_driver/firebase_core_e2e_test.dart
+++ b/packages/firebase_core/firebase_core/example/test_driver/firebase_core_e2e_test.dart
@@ -1,12 +1,7 @@
-// ignore_for_file: require_trailing_commas
-// @dart = 2.9
-
 // Copyright 2020, the Chromium project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// @dart=2.9
-
-import 'package:e2e/e2e_driver.dart' as e2e;
+import 'package:drive/drive_driver.dart' as drive;
 
-Future<void> main() async => e2e.main();
+void main() => drive.main();