diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 43515dc..9bf2492 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        flutter: ['3.0.0']
+        flutter: ['3.19.0']
     steps:
       - uses: actions/checkout@v2
       - uses: subosito/flutter-action@v1
@@ -23,11 +23,11 @@ jobs:
       - uses: actions/checkout@v2
       - uses: subosito/flutter-action@v1
         with:
-          flutter-version: '3.0.0'
+          flutter-version: '3.19.0'
           channel: 'stable'
       - run: flutter pub get
       - run: flutter analyze
-      - run: flutter format -n --set-exit-if-changed .
+      - run: dart format --set-exit-if-changed .
 
   build-android:
     name: Integration tests on Android
@@ -60,7 +60,7 @@ jobs:
       # -- Integration tests --
       - uses: subosito/flutter-action@v1
         with:
-          flutter-version: '3.0.0'
+          flutter-version: '3.19.0'
           channel: 'stable'
 
       - name: Run Flutter Driver tests
@@ -108,7 +108,7 @@ jobs:
 
       - uses: subosito/flutter-action@v1
         with:
-          flutter-version: '3.0.0'
+          flutter-version: '3.19.0'
           channel: 'stable'
 
       - run: "flutter clean"
@@ -146,7 +146,7 @@ jobs:
       # -- Integration tests --
       - uses: subosito/flutter-action@v1
         with:
-          flutter-version: '3.0.0'
+          flutter-version: '3.19.0'
           channel: 'stable'
 
       - run: chromedriver --port=4444 &
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 4ef2c24..5da4b0a 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        flutter: ['3.0.0']
+        flutter: ['3.19.0']
     steps:
       - uses: actions/checkout@v2
       - uses: subosito/flutter-action@v1
diff --git a/test/snowplow_test.dart b/test/snowplow_test.dart
index def977c..788d4ba 100644
--- a/test/snowplow_test.dart
+++ b/test/snowplow_test.dart
@@ -38,14 +38,16 @@ void main() {
   setUp(() {
     methodCall = null;
     returnValue = null;
-    channel.setMockMethodCallHandler((MethodCall call) async {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(channel, (MethodCall call) async {
       methodCall = call;
       return returnValue;
     });
   });
 
   tearDown(() {
-    channel.setMockMethodCallHandler(null);
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(channel, (message) => null);
   });
 
   test('createsTrackerWithConfiguration', () async {
diff --git a/test/tracker_test.dart b/test/tracker_test.dart
index ee40d28..7e1b61f 100644
--- a/test/tracker_test.dart
+++ b/test/tracker_test.dart
@@ -27,7 +27,8 @@ void main() {
   setUp(() async {
     returnValue = null;
 
-    channel.setMockMethodCallHandler((MethodCall methodCall) async {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(channel, (MethodCall methodCall) async {
       method = methodCall.method;
       arguments = methodCall.arguments;
       return returnValue;
@@ -39,7 +40,8 @@ void main() {
   });
 
   tearDown(() {
-    channel.setMockMethodCallHandler(null);
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(channel, null);
   });
 
   test('tracks structured event', () async {