diff --git a/packages/patrol/example/integration_test/open_app_test.dart b/packages/patrol/example/integration_test/open_app_test.dart
index fa1a4b231..c52a7a13c 100644
--- a/packages/patrol/example/integration_test/open_app_test.dart
+++ b/packages/patrol/example/integration_test/open_app_test.dart
@@ -6,7 +6,7 @@ import 'common.dart';
 
 void main() {
   patrol('open maps', ($) async {
-    late String mapsId;
+    final String mapsId;
     if (Platform.isIOS) {
       mapsId = 'com.apple.Maps';
     } else if (Platform.isAndroid) {
@@ -30,7 +30,7 @@ void main() {
   });
 
   patrol('open browser', ($) async {
-    late String browserId;
+    final String browserId;
     if (Platform.isIOS) {
       browserId = 'com.apple.mobilesafari';
     } else if (Platform.isAndroid) {
diff --git a/packages/patrol/example/integration_test/swipe_test.dart b/packages/patrol/example/integration_test/swipe_test.dart
index 02ef39835..370223659 100644
--- a/packages/patrol/example/integration_test/swipe_test.dart
+++ b/packages/patrol/example/integration_test/swipe_test.dart
@@ -3,7 +3,7 @@ import 'dart:io' show Platform;
 import 'common.dart';
 
 void main() {
-  late String appId;
+  final String appId;
   if (Platform.isIOS) {
     appId = 'com.apple.Preferences';
   } else if (Platform.isAndroid) {