diff --git a/packages/stream_chat/test/fixtures/channel_state_to_json.json b/packages/stream_chat/test/fixtures/channel_state_to_json.json
index ebb74fb6..c0c06f9e 100644
--- a/packages/stream_chat/test/fixtures/channel_state_to_json.json
+++ b/packages/stream_chat/test/fixtures/channel_state_to_json.json
@@ -11,6 +11,7 @@
   },
   "watchers": [],
   "read": [],
+  "membership": null,
   "messages": [
     {
       "id": "dry-meadow-0-2b73cc8b-cd86-4a01-8d40-bd82ad07a030",