diff --git a/services/core.py b/services/core.py
index 0b9438b..1fadc98 100644
--- a/services/core.py
+++ b/services/core.py
@@ -37,10 +37,10 @@ async def get_all_authors() -> List[ChatMember]:
         authors = await _request_endpoint(query_name, gql)
 
         for a in authors:
-            authors_by_user[a.user] = a
-            authors_by_id[a.id] = a
+            authors_by_user[a["user"]] = a
+            authors_by_id[a["id"]] = a
 
-    return authors_by_id.values()
+    return list(authors_by_id.values())
 
 
 async def get_my_followed() -> List[ChatMember]: