diff --git a/.changeset/chat-stopstream-session-status.md b/.changeset/chat-stopstream-session-status.md
new file mode 100644
index 000000000..c54f22d55
--- /dev/null
+++ b/.changeset/chat-stopstream-session-status.md
@@ -0,0 +1,5 @@
+---
+"@slack/web-api": minor
+---
+
+feat(web-api): add `session_status` to [`chat.stopStream`](https://docs.slack.dev/reference/methods/chat.stopStream) arguments
diff --git a/packages/web-api/src/types/request/chat.ts b/packages/web-api/src/types/request/chat.ts
index 3a3d10462..265eee47c 100644
--- a/packages/web-api/src/types/request/chat.ts
+++ b/packages/web-api/src/types/request/chat.ts
@@ -289,6 +289,10 @@ export type ChatStopStreamArguments = TokenOverridable &
      * Block formatted elements will be appended to the end of the message.
      */
     blocks?: (KnownBlock | Block)[];
+    /**
+     * @description The session status to set after stopping the stream. Defaults to `active`.
+     */
+    session_status?: string;
   };
 
 export interface SourceAndUnfurlID {