diff --git a/.travis.yml b/.travis.yml
index fcc5dac..0262ecf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,13 @@
-language: dart
+os:
+  - linux
 sudo: false
+addons:
+  apt:
+    sources:
+      - ubuntu-toolchain-r-test
+    packages:
+      - libstdc++6
+      - fonts-droid-fallback
 before_script:
   - git clone https://github.com/flutter/flutter.git -b stable --depth 1
   - ./flutter/bin/flutter doctor
@@ -23,4 +31,4 @@ after_success:
   - bash <(curl -s https://codecov.io/bash)
 cache:
   directories:
-    - $HOME/.pub-cache
+    - $HOME/.pub-cache
\ No newline at end of file
diff --git a/packages/golden_toolkit/CHANGELOG.md b/packages/golden_toolkit/CHANGELOG.md
index 34eea9e..8668c27 100644
--- a/packages/golden_toolkit/CHANGELOG.md
+++ b/packages/golden_toolkit/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.14.0
+
+- Updated to Dart 2.18 and newer dependencies
+
 ## 0.13.0
 
 - Updated to Flutter 2.8 / Dart 2.15
diff --git a/packages/golden_toolkit/example/pubspec.lock b/packages/golden_toolkit/example/pubspec.lock
index 597487e..a536ec0 100644
--- a/packages/golden_toolkit/example/pubspec.lock
+++ b/packages/golden_toolkit/example/pubspec.lock
@@ -7,7 +7,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.8.2"
+    version: "2.9.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -21,35 +21,28 @@ packages:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
-  charcode:
-    dependency: transitive
-    description:
-      name: charcode
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.1"
+    version: "1.2.1"
   clock:
     dependency: transitive
     description:
       name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.1"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0"
+    version: "1.16.0"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -73,7 +66,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.13.0"
+    version: "0.14.0"
   lints:
     dependency: transitive
     description:
@@ -87,21 +80,28 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.11"
+    version: "0.12.12"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.5"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.7.0"
+    version: "1.8.0"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0"
+    version: "1.8.2"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -113,7 +113,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.1"
+    version: "1.9.0"
   stack_trace:
     dependency: transitive
     description:
@@ -134,34 +134,27 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.1"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.2.1"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.3"
-  typed_data:
-    dependency: transitive
-    description:
-      name: typed_data
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.0"
+    version: "0.4.12"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
 sdks:
-  dart: ">=2.15.0 <3.0.0"
+  dart: ">=2.18.4 <3.0.0"
diff --git a/packages/golden_toolkit/example/test/example_test.dart b/packages/golden_toolkit/example/test/example_test.dart
index 8d10819..2430051 100644
--- a/packages/golden_toolkit/example/test/example_test.dart
+++ b/packages/golden_toolkit/example/test/example_test.dart
@@ -209,7 +209,7 @@ class FutureWidgetTester extends StatefulWidget {
   final Widget child;
   final Duration duration;
   @override
-  _FutureWidgetTesterState createState() => _FutureWidgetTesterState();
+  State<FutureWidgetTester> createState() => _FutureWidgetTesterState();
 }
 
 class _FutureWidgetTesterState extends State<FutureWidgetTester> {
diff --git a/packages/golden_toolkit/example/test/goldens/all_sized_all_fonts.phone.png b/packages/golden_toolkit/example/test/goldens/all_sized_all_fonts.phone.png
index 59f93f0..8025f6f 100644
Binary files a/packages/golden_toolkit/example/test/goldens/all_sized_all_fonts.phone.png and b/packages/golden_toolkit/example/test/goldens/all_sized_all_fonts.phone.png differ
diff --git a/packages/golden_toolkit/example/test/goldens/all_sized_all_fonts.tablet_landscape.png b/packages/golden_toolkit/example/test/goldens/all_sized_all_fonts.tablet_landscape.png
index ef08393..4ef995f 100644
Binary files a/packages/golden_toolkit/example/test/goldens/all_sized_all_fonts.tablet_landscape.png and b/packages/golden_toolkit/example/test/goldens/all_sized_all_fonts.tablet_landscape.png differ
diff --git a/packages/golden_toolkit/example/test/goldens/example_of_images_not_properly_loading.phone.png b/packages/golden_toolkit/example/test/goldens/example_of_images_not_properly_loading.phone.png
index d2243c7..b39c5aa 100644
Binary files a/packages/golden_toolkit/example/test/goldens/example_of_images_not_properly_loading.phone.png and b/packages/golden_toolkit/example/test/goldens/example_of_images_not_properly_loading.phone.png differ
diff --git a/packages/golden_toolkit/example/test/goldens/flutter_demo_page_multiple_scenarios.png b/packages/golden_toolkit/example/test/goldens/flutter_demo_page_multiple_scenarios.png
index 639f3ce..70cf096 100644
Binary files a/packages/golden_toolkit/example/test/goldens/flutter_demo_page_multiple_scenarios.png and b/packages/golden_toolkit/example/test/goldens/flutter_demo_page_multiple_scenarios.png differ
diff --git a/packages/golden_toolkit/example/test/goldens/flutter_demo_page_single_scenario.png b/packages/golden_toolkit/example/test/goldens/flutter_demo_page_single_scenario.png
index 2a4dc38..a34c55e 100644
Binary files a/packages/golden_toolkit/example/test/goldens/flutter_demo_page_single_scenario.png and b/packages/golden_toolkit/example/test/goldens/flutter_demo_page_single_scenario.png differ
diff --git a/packages/golden_toolkit/example/test/goldens/flutter_demo_page_single_scenario_more_devices.png b/packages/golden_toolkit/example/test/goldens/flutter_demo_page_single_scenario_more_devices.png
index 4b49f65..817b599 100644
Binary files a/packages/golden_toolkit/example/test/goldens/flutter_demo_page_single_scenario_more_devices.png and b/packages/golden_toolkit/example/test/goldens/flutter_demo_page_single_scenario_more_devices.png differ
diff --git a/packages/golden_toolkit/example/test/goldens/weather_image_async_load_correct_duration.phone.png b/packages/golden_toolkit/example/test/goldens/weather_image_async_load_correct_duration.phone.png
index 33848ca..96544ea 100644
Binary files a/packages/golden_toolkit/example/test/goldens/weather_image_async_load_correct_duration.phone.png and b/packages/golden_toolkit/example/test/goldens/weather_image_async_load_correct_duration.phone.png differ
diff --git a/packages/golden_toolkit/example/test/goldens/weather_types_column.png b/packages/golden_toolkit/example/test/goldens/weather_types_column.png
index 56200f7..812769c 100644
Binary files a/packages/golden_toolkit/example/test/goldens/weather_types_column.png and b/packages/golden_toolkit/example/test/goldens/weather_types_column.png differ
diff --git a/packages/golden_toolkit/example/test/goldens/weather_types_grid.png b/packages/golden_toolkit/example/test/goldens/weather_types_grid.png
index 6bb0ce1..194cffe 100644
Binary files a/packages/golden_toolkit/example/test/goldens/weather_types_grid.png and b/packages/golden_toolkit/example/test/goldens/weather_types_grid.png differ
diff --git a/packages/golden_toolkit/lib/src/device_builder.dart b/packages/golden_toolkit/lib/src/device_builder.dart
index 7313685..f025413 100644
--- a/packages/golden_toolkit/lib/src/device_builder.dart
+++ b/packages/golden_toolkit/lib/src/device_builder.dart
@@ -13,12 +13,12 @@ import 'package:flutter/material.dart';
 import '../golden_toolkit.dart';
 
 /// Class containing whats required to create a Scenario
-class _DeviceScenario {
+class DeviceScenario {
   /// constructs a DeviceScenario
-  _DeviceScenario({
+  DeviceScenario({
     required this.key,
-    this.onCreate,
     required this.widget,
+    this.onCreate,
   });
 
   /// key that references created scenario and specific device
@@ -28,7 +28,7 @@ class _DeviceScenario {
   final OnScenarioCreate? onCreate;
 
   /// widget that represents this device/scenario
-  final _DeviceScenarioWidget widget;
+  final DeviceScenarioWidget widget;
 }
 
 /// DeviceBuilder builds [Device] size driven layout for its children
@@ -53,7 +53,7 @@ class DeviceBuilder {
   final Color? bgColor;
 
   /// list of created DeviceScenarios for each device type
-  final List<_DeviceScenario> scenarios = [];
+  final List<DeviceScenario> scenarios = [];
 
   List<Device> _devicesForScenarios =
       GoldenToolkit.configuration.defaultDevices;
@@ -66,7 +66,7 @@ class DeviceBuilder {
     _devicesForScenarios = devices;
   }
 
-  /// [addScenario] will add a [_DeviceScenario] for each device listed
+  /// [addScenario] will add a [DeviceScenario] for each device listed
   /// under [_devicesForScenarios]
   ///
   /// [widget] widget you'd like rendered ad Device sizes
@@ -83,10 +83,10 @@ class DeviceBuilder {
       final key = Key(scenarioName);
 
       scenarios.add(
-        _DeviceScenario(
+        DeviceScenario(
           key: key,
           onCreate: onCreate,
-          widget: _DeviceScenarioWidget(
+          widget: DeviceScenarioWidget(
             key: key,
             device: dev,
             widget: widget,
@@ -153,8 +153,8 @@ class DeviceBuilder {
   }
 }
 
-class _DeviceScenarioWidget extends StatelessWidget {
-  const _DeviceScenarioWidget({
+class DeviceScenarioWidget extends StatelessWidget {
+  const DeviceScenarioWidget({
     required Key key,
     required this.device,
     required this.widget,
diff --git a/packages/golden_toolkit/lib/src/testing_tools.dart b/packages/golden_toolkit/lib/src/testing_tools.dart
index d1077b3..0b891c1 100644
--- a/packages/golden_toolkit/lib/src/testing_tools.dart
+++ b/packages/golden_toolkit/lib/src/testing_tools.dart
@@ -49,11 +49,11 @@ extension TestingToolsExtension on WidgetTester {
     Size surfaceSize = _defaultSize,
     double textScaleSize = 1.0,
   }) async {
-    final _wrapper = wrapper ?? materialAppWrapper();
+    final wrap = wrapper ?? materialAppWrapper();
 
     await _pumpAppWidget(
       this,
-      _wrapper(widget),
+      wrap(widget),
       surfaceSize: surfaceSize,
       textScaleSize: textScaleSize,
     );
@@ -123,7 +123,8 @@ Future<void> _pumpAppWidget(
   await tester.binding.setSurfaceSize(surfaceSize);
   tester.binding.window.physicalSizeTestValue = surfaceSize;
   tester.binding.window.devicePixelRatioTestValue = 1.0;
-  tester.binding.window.textScaleFactorTestValue = textScaleSize;
+  tester.binding.window.platformDispatcher.textScaleFactorTestValue =
+      textScaleSize;
 
   await tester.pumpWidget(
     DefaultAssetBundle(bundle: TestAssetBundle(), child: app),
diff --git a/packages/golden_toolkit/lib/src/widget_tester_extensions.dart b/packages/golden_toolkit/lib/src/widget_tester_extensions.dart
index c593796..350489e 100644
--- a/packages/golden_toolkit/lib/src/widget_tester_extensions.dart
+++ b/packages/golden_toolkit/lib/src/widget_tester_extensions.dart
@@ -46,9 +46,10 @@ extension WidgetFlutterBindingExtensions on TestWidgetsFlutterBinding {
     await setSurfaceSize(Size(device.size.width, device.size.height));
     this.window.physicalSizeTestValue = device.size;
     this.window.devicePixelRatioTestValue = device.devicePixelRatio;
-    this.window.textScaleFactorTestValue = device.textScale;
+    this.window.platformDispatcher.textScaleFactorTestValue = device.textScale;
+    this.window.platformDispatcher.platformBrightnessTestValue =
+        device.brightness;
     this.window.safeAreaTestValue = device.safeArea;
-    this.window.platformBrightnessTestValue = device.brightness;
   }
 
   /// Resets any configuration that may be been specified by applyDeviceOverrides
@@ -58,9 +59,9 @@ extension WidgetFlutterBindingExtensions on TestWidgetsFlutterBinding {
     // there is an untested assumption that clearing these specific values is cheaper than
     // calling binding.window.clearAllTestValues().
     this.window.clearDevicePixelRatioTestValue();
-    this.window.clearPlatformBrightnessTestValue();
+    this.window.platformDispatcher.clearPlatformBrightnessTestValue();
     this.window.clearPaddingTestValue();
-    this.window.clearTextScaleFactorTestValue();
+    this.window.platformDispatcher.clearTextScaleFactorTestValue();
     this.window.clearPhysicalSizeTestValue();
     await setSurfaceSize(null);
   }
diff --git a/packages/golden_toolkit/pubspec.lock b/packages/golden_toolkit/pubspec.lock
index e959c05..053c2aa 100644
--- a/packages/golden_toolkit/pubspec.lock
+++ b/packages/golden_toolkit/pubspec.lock
@@ -7,7 +7,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.8.2"
+    version: "2.9.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -21,35 +21,28 @@ packages:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
-  charcode:
-    dependency: transitive
-    description:
-      name: charcode
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.1"
+    version: "1.2.1"
   clock:
     dependency: transitive
     description:
       name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.1"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0"
+    version: "1.16.0"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -61,7 +54,7 @@ packages:
       name: flutter_lints
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "2.0.1"
   flutter_test:
     dependency: "direct main"
     description: flutter
@@ -73,28 +66,35 @@ packages:
       name: lints
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.1"
+    version: "2.0.1"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.11"
+    version: "0.12.12"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.5"
   meta:
     dependency: "direct main"
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.7.0"
+    version: "1.8.0"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0"
+    version: "1.8.2"
   sample_dependency:
     dependency: "direct dev"
     description:
@@ -113,7 +113,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.1"
+    version: "1.9.0"
   stack_trace:
     dependency: transitive
     description:
@@ -134,34 +134,27 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.1"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.2.1"
   test_api:
     dependency: "direct dev"
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.3"
-  typed_data:
-    dependency: transitive
-    description:
-      name: typed_data
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.3.0"
+    version: "0.4.12"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
 sdks:
-  dart: ">=2.15.0 <3.0.0"
+  dart: ">=2.18.4 <3.0.0"
diff --git a/packages/golden_toolkit/pubspec.yaml b/packages/golden_toolkit/pubspec.yaml
index 2ce5464..0e2cd31 100644
--- a/packages/golden_toolkit/pubspec.yaml
+++ b/packages/golden_toolkit/pubspec.yaml
@@ -1,25 +1,25 @@
 name: golden_toolkit
 description: Common patterns for screenshot-based widget testing using Goldens.
-version: 0.13.0
+version: 0.14.0
 homepage: https://github.com/eBay/flutter_glove_box/
 repository: https://github.com/eBay/flutter_glove_box/tree/master/packages/golden_toolkit
 issue_tracker: https://github.com/eBay/flutter_glove_box/issues
 
 environment:
-  sdk: ">=2.15.0 <3.0.0"
+  sdk: ">=2.18.4 <3.0.0"
 
 dependencies:
   flutter:
     sdk: flutter
   flutter_test:
     sdk: flutter
-  meta: ^1.1.8
+  meta: ^1.8.0
 
 dev_dependencies:
-  flutter_lints: ^1.0.4
+  flutter_lints: ^2.0.1
   sample_dependency:
     path: test/sample_dependency
-  test_api: ^0.4.2
+  test_api: ^0.4.12
 
 flutter:
   fonts:
diff --git a/packages/golden_toolkit/test/goldens/enableRealShadows_honored_when_testGoldens_wrapped.png b/packages/golden_toolkit/test/goldens/enableRealShadows_honored_when_testGoldens_wrapped.png
index 53b2b66..4629783 100644
Binary files a/packages/golden_toolkit/test/goldens/enableRealShadows_honored_when_testGoldens_wrapped.png and b/packages/golden_toolkit/test/goldens/enableRealShadows_honored_when_testGoldens_wrapped.png differ
diff --git a/packages/golden_toolkit/test/goldens/enableRealShadows_ignored_when_testGoldens_not_wrapped.png b/packages/golden_toolkit/test/goldens/enableRealShadows_ignored_when_testGoldens_not_wrapped.png
index 783b2e1..f2854fe 100644
Binary files a/packages/golden_toolkit/test/goldens/enableRealShadows_ignored_when_testGoldens_not_wrapped.png and b/packages/golden_toolkit/test/goldens/enableRealShadows_ignored_when_testGoldens_not_wrapped.png differ
diff --git a/packages/golden_toolkit/test/goldens/material_fonts.png b/packages/golden_toolkit/test/goldens/material_fonts.png
index c25e81b..43e0d52 100644
Binary files a/packages/golden_toolkit/test/goldens/material_fonts.png and b/packages/golden_toolkit/test/goldens/material_fonts.png differ