diff --git a/slack_sdk/web/async_client.py b/slack_sdk/web/async_client.py
index 24e93b4ef..69e4f1251 100644
--- a/slack_sdk/web/async_client.py
+++ b/slack_sdk/web/async_client.py
@@ -3003,6 +3003,7 @@ async def chat_stopStream(
         blocks: Optional[Union[str, Sequence[Union[Dict, Block]]]] = None,
         metadata: Optional[Union[Dict, Metadata]] = None,
         chunks: Optional[Sequence[Union[Dict, Chunk]]] = None,
+        session_status: Optional[str] = None,
         **kwargs,
     ) -> AsyncSlackResponse:
         """Stops a streaming conversation.
@@ -3016,6 +3017,7 @@ async def chat_stopStream(
                 "blocks": blocks,
                 "metadata": metadata,
                 "chunks": chunks,
+                "session_status": session_status,
             }
         )
         _parse_web_class_objects(kwargs)
diff --git a/slack_sdk/web/client.py b/slack_sdk/web/client.py
index 6149a092a..b8ffba765 100644
--- a/slack_sdk/web/client.py
+++ b/slack_sdk/web/client.py
@@ -2993,6 +2993,7 @@ def chat_stopStream(
         blocks: Optional[Union[str, Sequence[Union[Dict, Block]]]] = None,
         metadata: Optional[Union[Dict, Metadata]] = None,
         chunks: Optional[Sequence[Union[Dict, Chunk]]] = None,
+        session_status: Optional[str] = None,
         **kwargs,
     ) -> SlackResponse:
         """Stops a streaming conversation.
@@ -3006,6 +3007,7 @@ def chat_stopStream(
                 "blocks": blocks,
                 "metadata": metadata,
                 "chunks": chunks,
+                "session_status": session_status,
             }
         )
         _parse_web_class_objects(kwargs)
diff --git a/slack_sdk/web/legacy_client.py b/slack_sdk/web/legacy_client.py
index d03c2c8ae..4c7a9ab16 100644
--- a/slack_sdk/web/legacy_client.py
+++ b/slack_sdk/web/legacy_client.py
@@ -3004,6 +3004,7 @@ def chat_stopStream(
         blocks: Optional[Union[str, Sequence[Union[Dict, Block]]]] = None,
         metadata: Optional[Union[Dict, Metadata]] = None,
         chunks: Optional[Sequence[Union[Dict, Chunk]]] = None,
+        session_status: Optional[str] = None,
         **kwargs,
     ) -> Union[Future, SlackResponse]:
         """Stops a streaming conversation.
@@ -3017,6 +3018,7 @@ def chat_stopStream(
                 "blocks": blocks,
                 "metadata": metadata,
                 "chunks": chunks,
+                "session_status": session_status,
             }
         )
         _parse_web_class_objects(kwargs)