diff --git a/packages/dropdown_button2_test/pubspec.yaml b/packages/dropdown_button2_test/pubspec.yaml
index 4dc811b..79896e6 100644
--- a/packages/dropdown_button2_test/pubspec.yaml
+++ b/packages/dropdown_button2_test/pubspec.yaml
@@ -14,7 +14,7 @@ dependencies:
     path: ../dropdown_button2
 
 dev_dependencies:
-  flutter_lints: ^4.0.0
+  flutter_lints: ^5.0.0
   flutter_test:
     sdk: flutter
   file: ^7.0.0