diff --git a/pubspec.yaml b/pubspec.yaml
index 2cb2e11..8447069 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: tuuli_api
-version: 1.0.2
+version: 1.0.3
 description: OpenAPI API client
 homepage: homepage
 
@@ -11,5 +11,6 @@ dependencies:
 
 dev_dependencies:
     build_runner: any
+    json_annotation: ^4.8.1
     json_serializable: ^6.6.1
     test: ^1.16.0