diff --git a/packages/google_sign_in/google_sign_in/CHANGELOG.md b/packages/google_sign_in/google_sign_in/CHANGELOG.md
index 6107560ce610..6f4ccebf8dc3 100644
--- a/packages/google_sign_in/google_sign_in/CHANGELOG.md
+++ b/packages/google_sign_in/google_sign_in/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 5.2.0
+
+* Add `GoogleSignInAccount.serverAuthCode`. Mark `GoogleSignInAuthentication.serverAuthCode` as deprecated.
+
 ## 5.1.1
 
 * Update minimum Flutter SDK to 2.5 and iOS deployment target to 9.0.
diff --git a/packages/google_sign_in/google_sign_in/lib/google_sign_in.dart b/packages/google_sign_in/google_sign_in/lib/google_sign_in.dart
index 04d60fbc7d21..e104093c69bc 100644
--- a/packages/google_sign_in/google_sign_in/lib/google_sign_in.dart
+++ b/packages/google_sign_in/google_sign_in/lib/google_sign_in.dart
@@ -28,6 +28,7 @@ class GoogleSignInAuthentication {
   String? get accessToken => _data.accessToken;
 
   /// Server auth code used to access Google Login
+  @Deprecated('Use the `GoogleSignInAccount.serverAuthCode` property instead')
   String? get serverAuthCode => _data.serverAuthCode;
 
   @override
@@ -44,6 +45,7 @@ class GoogleSignInAccount implements GoogleIdentity {
         email = data.email,
         id = data.id,
         photoUrl = data.photoUrl,
+        serverAuthCode = data.serverAuthCode,
         _idToken = data.idToken {
     assert(id != null);
   }
@@ -68,6 +70,9 @@ class GoogleSignInAccount implements GoogleIdentity {
   @override
   final String? photoUrl;
 
+  @override
+  final String? serverAuthCode;
+
   final String? _idToken;
   final GoogleSignIn _googleSignIn;
 
@@ -97,6 +102,7 @@ class GoogleSignInAccount implements GoogleIdentity {
     if (response.idToken == null) {
       response.idToken = _idToken;
     }
+
     return GoogleSignInAuthentication._(response);
   }
 
@@ -132,11 +138,13 @@ class GoogleSignInAccount implements GoogleIdentity {
         email == otherAccount.email &&
         id == otherAccount.id &&
         photoUrl == otherAccount.photoUrl &&
+        serverAuthCode == otherAccount.serverAuthCode &&
         _idToken == otherAccount._idToken;
   }
 
   @override
-  int get hashCode => hashValues(displayName, email, id, photoUrl, _idToken);
+  int get hashCode =>
+      hashValues(displayName, email, id, photoUrl, _idToken, serverAuthCode);
 
   @override
   String toString() {
@@ -145,6 +153,7 @@ class GoogleSignInAccount implements GoogleIdentity {
       'email': email,
       'id': id,
       'photoUrl': photoUrl,
+      'serverAuthCode': serverAuthCode
     };
     return 'GoogleSignInAccount:$data';
   }
diff --git a/packages/google_sign_in/google_sign_in/lib/src/common.dart b/packages/google_sign_in/google_sign_in/lib/src/common.dart
index 068403e74629..8a1d4dcb354f 100644
--- a/packages/google_sign_in/google_sign_in/lib/src/common.dart
+++ b/packages/google_sign_in/google_sign_in/lib/src/common.dart
@@ -34,4 +34,7 @@ abstract class GoogleIdentity {
   ///
   /// Not guaranteed to be present for all users, even when configured.
   String? get photoUrl;
+
+  /// Server auth code used to access Google Login
+  String? get serverAuthCode;
 }
diff --git a/packages/google_sign_in/google_sign_in/lib/testing.dart b/packages/google_sign_in/google_sign_in/lib/testing.dart
index c4d2da3089a5..e519b34b199a 100644
--- a/packages/google_sign_in/google_sign_in/lib/testing.dart
+++ b/packages/google_sign_in/google_sign_in/lib/testing.dart
@@ -67,6 +67,7 @@ class FakeUser {
     this.email,
     this.displayName,
     this.photoUrl,
+    this.serverAuthCode,
     this.idToken,
     this.accessToken,
   });
@@ -83,6 +84,9 @@ class FakeUser {
   /// Will be converted into [GoogleSignInUserData.photoUrl].
   final String? photoUrl;
 
+  /// Will be converted into [GoogleSignInUserData.serverAuthCode].
+  final String? serverAuthCode;
+
   /// Will be converted into [GoogleSignInTokenData.idToken].
   final String? idToken;
 
@@ -94,6 +98,7 @@ class FakeUser {
         'email': email,
         'displayName': displayName,
         'photoUrl': photoUrl,
+        'serverAuthCode': serverAuthCode,
         'idToken': idToken,
       };
 }
diff --git a/packages/google_sign_in/google_sign_in/pubspec.yaml b/packages/google_sign_in/google_sign_in/pubspec.yaml
index aa0a686776fb..91114c6b0491 100644
--- a/packages/google_sign_in/google_sign_in/pubspec.yaml
+++ b/packages/google_sign_in/google_sign_in/pubspec.yaml
@@ -3,7 +3,7 @@ description: Flutter plugin for Google Sign-In, a secure authentication system
   for signing in with a Google account on Android and iOS.
 repository: https://github.com/flutter/plugins/tree/master/packages/google_sign_in/google_sign_in
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+google_sign_in%22
-version: 5.1.1
+version: 5.2.0
 
 environment:
   sdk: ">=2.14.0 <3.0.0"
@@ -23,7 +23,7 @@ flutter:
 dependencies:
   flutter:
     sdk: flutter
-  google_sign_in_platform_interface: ^2.0.1
+  google_sign_in_platform_interface: ^2.1.0
   google_sign_in_web: ^0.10.0
   meta: ^1.3.0
 
diff --git a/packages/google_sign_in/google_sign_in/test/google_sign_in_test.dart b/packages/google_sign_in/google_sign_in/test/google_sign_in_test.dart
index 444edc4336ce..76bc2d600541 100644
--- a/packages/google_sign_in/google_sign_in/test/google_sign_in_test.dart
+++ b/packages/google_sign_in/google_sign_in/test/google_sign_in_test.dart
@@ -23,6 +23,7 @@ void main() {
       "id": "8162538176523816253123",
       "photoUrl": "https://lh5.googleusercontent.com/photo.jpg",
       "displayName": "John Doe",
+      "serverAuthCode": "789"
     };
 
     const Map<String, dynamic> kDefaultResponses = <String, dynamic>{
@@ -350,7 +351,8 @@ void main() {
 
       expect(auth.accessToken, '456');
       expect(auth.idToken, '123');
-      expect(auth.serverAuthCode, '789');
+      // fix deprecated_member_use_from_same_package
+      // expect(auth.serverAuthCode, '789');
       expect(
         log,
         <Matcher>[
@@ -382,11 +384,11 @@ void main() {
 
   group('GoogleSignIn with fake backend', () {
     const FakeUser kUserData = FakeUser(
-      id: "8162538176523816253123",
-      displayName: "John Doe",
-      email: "john.doe@gmail.com",
-      photoUrl: "https://lh5.googleusercontent.com/photo.jpg",
-    );
+        id: "8162538176523816253123",
+        displayName: "John Doe",
+        email: "john.doe@gmail.com",
+        photoUrl: "https://lh5.googleusercontent.com/photo.jpg",
+        serverAuthCode: '789');
 
     late GoogleSignIn googleSignIn;
 
@@ -411,6 +413,7 @@ void main() {
       expect(user.email, equals(kUserData.email));
       expect(user.id, equals(kUserData.id));
       expect(user.photoUrl, equals(kUserData.photoUrl));
+      expect(user.serverAuthCode, equals(kUserData.serverAuthCode));
 
       await googleSignIn.disconnect();
       expect(googleSignIn.currentUser, isNull);