diff --git a/packages/google_sign_in/google_sign_in_platform_interface/CHANGELOG.md b/packages/google_sign_in/google_sign_in_platform_interface/CHANGELOG.md
index dd6c22fbef29..ee43db685339 100644
--- a/packages/google_sign_in/google_sign_in_platform_interface/CHANGELOG.md
+++ b/packages/google_sign_in/google_sign_in_platform_interface/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.0.1
+
+* Updates `init` function in `MethodChannelGoogleSignIn` to parametrize `clientId` property.
+
 ## 2.0.0
 
 * Migrate to null-safety.
diff --git a/packages/google_sign_in/google_sign_in_platform_interface/lib/src/method_channel_google_sign_in.dart b/packages/google_sign_in/google_sign_in_platform_interface/lib/src/method_channel_google_sign_in.dart
index b36676e2376d..ea2426159e21 100644
--- a/packages/google_sign_in/google_sign_in_platform_interface/lib/src/method_channel_google_sign_in.dart
+++ b/packages/google_sign_in/google_sign_in_platform_interface/lib/src/method_channel_google_sign_in.dart
@@ -30,6 +30,7 @@ class MethodChannelGoogleSignIn extends GoogleSignInPlatform {
       'signInOption': signInOption.toString(),
       'scopes': scopes,
       'hostedDomain': hostedDomain,
+      'clientId': clientId,
     });
   }
 
diff --git a/packages/google_sign_in/google_sign_in_platform_interface/pubspec.yaml b/packages/google_sign_in/google_sign_in_platform_interface/pubspec.yaml
index 56b4033dcb88..195bff28d992 100644
--- a/packages/google_sign_in/google_sign_in_platform_interface/pubspec.yaml
+++ b/packages/google_sign_in/google_sign_in_platform_interface/pubspec.yaml
@@ -3,7 +3,7 @@ description: A common platform interface for the google_sign_in plugin.
 homepage: https://github.com/flutter/plugins/tree/master/packages/google_sign_in/google_sign_in_platform_interface
 # NOTE: We strongly prefer non-breaking changes, even at the expense of a
 # less-clean API. See https://flutter.dev/go/platform-interface-breaking-changes
-version: 2.0.0
+version: 2.0.1
 
 dependencies:
   flutter:
diff --git a/packages/google_sign_in/google_sign_in_platform_interface/test/method_channel_google_sign_in_test.dart b/packages/google_sign_in/google_sign_in_platform_interface/test/method_channel_google_sign_in_test.dart
index 325f0c10a6ab..9447cd0edfc4 100644
--- a/packages/google_sign_in/google_sign_in_platform_interface/test/method_channel_google_sign_in_test.dart
+++ b/packages/google_sign_in/google_sign_in_platform_interface/test/method_channel_google_sign_in_test.dart
@@ -100,11 +100,12 @@ void main() {
               hostedDomain: 'example.com',
               scopes: <String>['two', 'scopes'],
               signInOption: SignInOption.games,
-              clientId: 'UNUSED!');
+              clientId: 'fakeClientId');
         }: isMethodCall('init', arguments: <String, dynamic>{
           'hostedDomain': 'example.com',
           'scopes': <String>['two', 'scopes'],
           'signInOption': 'SignInOption.games',
+          'clientId': 'fakeClientId',
         }),
         () {
           googleSignIn.getTokens(