diff --git a/app.py b/app.py
index 1bb649f..137a807 100755
--- a/app.py
+++ b/app.py
@@ -3,8 +3,10 @@ from fastmcp import FastMCP
 from spider.mail_qq import start as start_mail_qq_spider
 import asyncio
 import json
+from typing import Optional
 import logging
 
+
 logging.basicConfig(level=logging.INFO)
 # 日志会输出到 stderr，不会污染 stdout
 logging.info("服务器启动")