diff --git a/packages/flutter_timetable_firebase/pubspec.yaml b/packages/flutter_timetable_firebase/pubspec.yaml
index 60f9adc..9028d08 100644
--- a/packages/flutter_timetable_firebase/pubspec.yaml
+++ b/packages/flutter_timetable_firebase/pubspec.yaml
@@ -24,4 +24,4 @@ dependencies:
 
 
 dev_dependencies:
-  flutter_lints: ^2.0.0
+  flutter_lints: ">=2.0.0 <6.0.0"