diff --git a/packages/insomnia_collection/pubspec.yaml b/packages/insomnia_collection/pubspec.yaml
index 4b174704..66f89b28 100644
--- a/packages/insomnia_collection/pubspec.yaml
+++ b/packages/insomnia_collection/pubspec.yaml
@@ -15,6 +15,7 @@ environment:
 
 dependencies:
   freezed_annotation: ^2.4.4
+  json_annotation: ^4.9.0
 
 dev_dependencies:
   build_runner: ^2.4.12