diff --git a/.ci/flutter_master.version b/.ci/flutter_master.version
index dc78f96c8a8..103bc15aef1 100644
--- a/.ci/flutter_master.version
+++ b/.ci/flutter_master.version
@@ -1 +1 @@
-7ac9fc5baead4c2b707c73c4eae96280caac9d35
+fb5ad6e8a7ba6e962c7830ade83eb92882f0e400
diff --git a/packages/pigeon/lib/dart_generator.dart b/packages/pigeon/lib/dart_generator.dart
index 1bcafcf231c..0fee4aef8a2 100644
--- a/packages/pigeon/lib/dart_generator.dart
+++ b/packages/pigeon/lib/dart_generator.dart
@@ -603,7 +603,7 @@ void generateTestDart(
   indent.writeln('// $generatedCodeWarning');
   indent.writeln('// $seeAlsoWarning');
   indent.writeln(
-    '// ignore_for_file: public_member_api_docs, non_constant_identifier_names, avoid_as, unused_import, unnecessary_parenthesis',
+    '// ignore_for_file: public_member_api_docs, non_constant_identifier_names, avoid_as, unused_import, unnecessary_parenthesis, unnecessary_import',
   );
   indent.writeln('// ignore_for_file: avoid_relative_lib_imports');
   indent.writeln('import \'dart:async\';');