diff --git a/packages/codde_protocol/pubspec.yaml b/packages/codde_protocol/pubspec.yaml
index ca90960..90a9db6 100644
--- a/packages/codde_protocol/pubspec.yaml
+++ b/packages/codde_protocol/pubspec.yaml
@@ -16,7 +16,7 @@ dependencies:
 
 dev_dependencies:
   build_runner: ^2.4.8
-  ffigen: ^9.0.1
+  ffigen: ">=9.0.1 <12.0.0"
   freezed: ^2.4.7
   lints: ^2.0.0
   mockito: ^5.4.2