diff --git a/lib/features/auth/presentation/widgets/privacy_notice_card.dart b/lib/features/auth/presentation/widgets/privacy_notice_card.dart
index 04adb88..8e52e19 100644
--- a/lib/features/auth/presentation/widgets/privacy_notice_card.dart
+++ b/lib/features/auth/presentation/widgets/privacy_notice_card.dart
@@ -17,7 +17,7 @@ class PrivacyNoticeCard extends StatelessWidget {
         color: AppTheme.lightMint,
         borderRadius: BorderRadius.circular(12),
         border: Border.all(
-          color: AppTheme.mintGreen.withOpacity(0.3),
+          color: AppTheme.mintGreen.withValues(alpha: 0.3),
           width: 1,
         ),
       ),
@@ -85,7 +85,7 @@ class _PrivacyPoint extends StatelessWidget {
             text,
             style: TextStyle(
               fontSize: 12,
-              color: AppTheme.forestGreen.withOpacity(0.85),
+              color: AppTheme.forestGreen.withValues(alpha: 0.85),
               height: 1.4,
             ),
           ),
@@ -105,10 +105,10 @@ class ScheduleWarningBanner extends StatelessWidget {
     return Container(
       padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 10),
       decoration: BoxDecoration(
-        color: AppTheme.alertAmber.withOpacity(0.10),
+        color: AppTheme.alertAmber.withValues(alpha: 0.10),
         borderRadius: BorderRadius.circular(10),
         border: Border.all(
-          color: AppTheme.alertAmber.withOpacity(0.35),
+          color: AppTheme.alertAmber.withValues(alpha: 0.35),
           width: 1,
         ),
       ),
diff --git a/test/widget_test.dart b/test/widget_test.dart
index e69304c..b203823 100644
--- a/test/widget_test.dart
+++ b/test/widget_test.dart
@@ -11,7 +11,7 @@ import 'package:flutter_test/flutter_test.dart';
 // Use a local test app to avoid depending on external package imports
 // which may not exist in the test environment.
 class MyApp extends StatefulWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   State<MyApp> createState() => _MyAppState();