diff --git a/app.py b/app.py
index 9cd326e..a430280 100644
--- a/app.py
+++ b/app.py
@@ -5,11 +5,20 @@ from playwright.async_api import async_playwright  # 改用异步 API
 from dotenv import load_dotenv
 import os
 from typing import Optional, Dict, Any
+from contextlib import asynccontextmanager
 
 # 加载环境变量
 load_dotenv()
 
-app = FastAPI()
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    await initialize_playwright()
+    yield
+    # Clean up the ML models and release the resources
+    # await shutdown_event()
+    print("关闭")
+
+app = FastAPI(lifespan=lifespan)
 
 global_a1 = ""
 # 确保在模块级别声明全局变量
@@ -148,14 +157,7 @@ async def get_a1(a1: Optional[str] = None):
         return {'a1': global_a1}
 
 
-# 在应用启动时初始化 Playwright
-@app.lifespan("startup")
-async def startup_event():
-    await initialize_playwright()
 
-
-# 在应用关闭时清理资源
-@app.lifespan("shutdown")
 async def shutdown_event():
     global playwright_instance, browser_context, context_page
     if context_page:
diff --git a/requirements.txt b/requirements.txt
index dc3b3a4..35a4c9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
-playwright
-xhs
-fastapi
-dotenv
-uvicorn
\ No newline at end of file
+dotenv==0.9.9
+fastapi==0.115.12
+playwright==1.52.0
+requests==2.32.3
+uvicorn==0.34.2
+xhs==0.2.13