diff --git a/dart/pubspec.yaml b/dart/pubspec.yaml
index a8adfcf..e76bd42 100644
--- a/dart/pubspec.yaml
+++ b/dart/pubspec.yaml
@@ -16,5 +16,5 @@ dependencies:
   protobuf: ^4.0.0
 
 dev_dependencies:
-  lints: ^5.0.0
+  lints: ">=5.0.0 <7.0.0"
   test: ^1.24.0