diff --git a/shorebird_code_push/pubspec.yaml b/shorebird_code_push/pubspec.yaml
index 28fe49d..5f06ad3 100644
--- a/shorebird_code_push/pubspec.yaml
+++ b/shorebird_code_push/pubspec.yaml
@@ -12,8 +12,8 @@ dependencies:
   meta: ^1.9.1
 
 dev_dependencies:
-  ffigen: ^8.0.2
-  mocktail: ^0.3.0
+  ffigen: ">=8.0.2 <12.0.0"
+  mocktail: ">=0.3.0 <2.0.0"
   test: ^1.19.2
   very_good_analysis: ^5.0.0