diff --git a/test_goldens/testing/util.dart b/test_goldens/testing/util.dart
index f0dc61aa80..059b0c61d4 100644
--- a/test_goldens/testing/util.dart
+++ b/test_goldens/testing/util.dart
@@ -33,7 +33,8 @@ Future<void> setUpBinding(
 }) async {
   tester.binding.window.physicalSizeTestValue = size;
   tester.binding.window.devicePixelRatioTestValue = 1.0;
-  tester.binding.window.textScaleFactorTestValue = 1.0;
-  tester.binding.window.platformBrightnessTestValue = brightness;
+  tester.binding.window.platformDispatcher.textScaleFactorTestValue = 1.0;
+  tester.binding.window.platformDispatcher.platformBrightnessTestValue =
+      brightness;
   addTearDown(tester.binding.window.clearAllTestValues);
 }