diff --git a/pubspec.yaml b/pubspec.yaml
index 5be99a6..e6e4f6b 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -15,7 +15,7 @@ dependencies:
   image: ^3.2.0
 
 dev_dependencies:
-  ffigen: ^6.0.0 # dart run ffigen
+  ffigen: ">=6.0.0 <8.0.0" # dart run ffigen
   flutter_lints: ^2.0.1
   flutter_test:
     sdk: flutter