diff --git a/getstream/models/__init__.py b/getstream/models/__init__.py
index c85174a..ca38d7f 100644
--- a/getstream/models/__init__.py
+++ b/getstream/models/__init__.py
@@ -5,7 +5,7 @@
 from dataclasses_json import config as dc_config
 from datetime import datetime
 from marshmallow import fields
-from typing import List, Dict, Optional, Final, NewType
+from typing import List, Dict, Optional, Final, NewType, Literal
 from getstream.utils import encode_datetime, datetime_from_unix_ns
 
 
@@ -863,6 +863,9 @@ class BanActionRequest(DataClassJsonMixin):
     timeout: Optional[int] = dc_field(
         default=None, metadata=dc_config(field_name="timeout")
     )
+    delete_messages: Optional[Literal["hard", "delete"]] = dc_field(
+        default=None, metadata=dc_config(field_name="delete_messages")
+    )
 
 
 @dataclass