diff --git a/openmanus_server/openmanus_server.py b/openmanus_server/openmanus_server.py
index 50b4351..f0f6aee 100644
--- a/openmanus_server/openmanus_server.py
+++ b/openmanus_server/openmanus_server.py
@@ -4,7 +4,6 @@ import json
 import logging
 import os
 import sys
-from typing import Optional
 
 from mcp.server.fastmcp import FastMCP