diff --git a/event_schema/auth/user_login.py b/event_schema/auth/user_login.py
index 2ade4d2..f6faeb9 100644
--- a/event_schema/auth/user_login.py
+++ b/event_schema/auth/user_login.py
@@ -4,7 +4,7 @@
 
 
 class UserInfo(Base):
-    category: str
+    category: str | None = None
     param: str
     value: str | None = None