diff --git a/extensions/slack/src/monitor/context.ts b/extensions/slack/src/monitor/context.ts
index b78391b07f8..03c1bef857f 100644
--- a/extensions/slack/src/monitor/context.ts
+++ b/extensions/slack/src/monitor/context.ts
@@ -260,13 +260,28 @@ export function createSlackMonitorContext(params: {
     if (!p.threadTs) {
       return;
     }
+    const payload = {
+      token: params.botToken,
+      channel_id: p.channelId,
+      thread_ts: p.threadTs,
+      status: p.status,
+    };
+    const client = params.app.client as unknown as {
+      assistant?: {
+        threads?: {
+          setStatus?: (args: typeof payload) => Promise<unknown>;
+        };
+      };
+      apiCall?: (method: string, args: typeof payload) => Promise<unknown>;
+    };
     try {
-      await params.app.client.assistant.threads.setStatus({
-        token: params.botToken,
-        channel_id: p.channelId,
-        thread_ts: p.threadTs,
-        status: p.status,
-      });
+      if (client.assistant?.threads?.setStatus) {
+        await client.assistant.threads.setStatus(payload);
+        return;
+      }
+      if (typeof client.apiCall === "function") {
+        await client.apiCall("assistant.threads.setStatus", payload);
+      }
     } catch (err) {
       logVerbose(`slack status update failed for channel ${p.channelId}: ${String(err)}`);
     }