diff --git a/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md b/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md
index 2f37f09478c8..6f476436b3d6 100644
--- a/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md
+++ b/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.2.3+1
+
+* Updates `json_serializable` to fix warnings in generated code.
+
 ## 0.2.3
 
 * Upgrades Google Play Billing Library to 5.0
diff --git a/packages/in_app_purchase/in_app_purchase_android/lib/src/billing_client_wrappers/purchase_wrapper.dart b/packages/in_app_purchase/in_app_purchase_android/lib/src/billing_client_wrappers/purchase_wrapper.dart
index af1aaa5d556a..4e6b953096e2 100644
--- a/packages/in_app_purchase/in_app_purchase_android/lib/src/billing_client_wrappers/purchase_wrapper.dart
+++ b/packages/in_app_purchase/in_app_purchase_android/lib/src/billing_client_wrappers/purchase_wrapper.dart
@@ -106,6 +106,7 @@ class PurchaseWrapper {
 
   /// The product ID of this purchase.
   @Deprecated('Use skus instead')
+  @JsonKey(ignore: true)
   String get sku => _sku ?? (skus.isNotEmpty ? skus.first : '');
   final String? _sku;
 
@@ -209,6 +210,7 @@ class PurchaseHistoryRecordWrapper {
 
   /// The product ID of this purchase.
   @Deprecated('Use skus instead')
+  @JsonKey(ignore: true)
   String get sku => _sku ?? (skus.isNotEmpty ? skus.first : '');
 
   final String? _sku;
diff --git a/packages/in_app_purchase/in_app_purchase_android/lib/src/billing_client_wrappers/purchase_wrapper.g.dart b/packages/in_app_purchase/in_app_purchase_android/lib/src/billing_client_wrappers/purchase_wrapper.g.dart
index 7f6fd0f61d94..ad2a909fbfdc 100644
--- a/packages/in_app_purchase/in_app_purchase_android/lib/src/billing_client_wrappers/purchase_wrapper.g.dart
+++ b/packages/in_app_purchase/in_app_purchase_android/lib/src/billing_client_wrappers/purchase_wrapper.g.dart
@@ -12,10 +12,9 @@ PurchaseWrapper _$PurchaseWrapperFromJson(Map json) => PurchaseWrapper(
       purchaseTime: json['purchaseTime'] as int? ?? 0,
       purchaseToken: json['purchaseToken'] as String? ?? '',
       signature: json['signature'] as String? ?? '',
-      skus: json['skus'] != null
-          ? (json['skus'] as List)?.map((item) => item as String)?.toList() ??
-              <String>[]
-          : <String>[],
+      skus:
+          (json['skus'] as List<dynamic>?)?.map((e) => e as String).toList() ??
+              [],
       isAutoRenewing: json['isAutoRenewing'] as bool,
       originalJson: json['originalJson'] as String? ?? '',
       developerPayload: json['developerPayload'] as String?,
@@ -31,10 +30,9 @@ PurchaseHistoryRecordWrapper _$PurchaseHistoryRecordWrapperFromJson(Map json) =>
       purchaseTime: json['purchaseTime'] as int? ?? 0,
       purchaseToken: json['purchaseToken'] as String? ?? '',
       signature: json['signature'] as String? ?? '',
-      skus: json['skus'] != null
-          ? (json['skus'] as List)?.map((item) => item as String)?.toList() ??
-              <String>[]
-          : <String>[],
+      skus:
+          (json['skus'] as List<dynamic>?)?.map((e) => e as String).toList() ??
+              [],
       originalJson: json['originalJson'] as String? ?? '',
       developerPayload: json['developerPayload'] as String?,
     );
diff --git a/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml b/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml
index db419b8e1aa4..84bd36a8096b 100644
--- a/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml
+++ b/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: in_app_purchase_android
 description: An implementation for the Android platform of the Flutter `in_app_purchase` plugin. This uses the Android BillingClient APIs.
 repository: https://github.com/flutter/plugins/tree/main/packages/in_app_purchase/in_app_purchase_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+in_app_purchase%22
-version: 0.2.3
+version: 0.2.3+1
 
 environment:
   sdk: ">=2.14.0 <3.0.0"
@@ -21,12 +21,12 @@ dependencies:
   flutter:
     sdk: flutter
   in_app_purchase_platform_interface: ^1.3.0
-  json_annotation: ^4.3.0
+  json_annotation: ^4.6.0
 
 dev_dependencies:
   build_runner: ^2.0.0
   flutter_test:
     sdk: flutter
-  json_serializable: ^6.0.0
+  json_serializable: ^6.3.1
   mockito: ^5.1.0
   test: ^1.16.0