diff --git a/app.py b/app.py
index ec20d90..2e3dd9b 100644
--- a/app.py
+++ b/app.py
@@ -171,4 +171,11 @@ async def shutdown_event():
 if __name__ == '__main__':
     import uvicorn
     port = os.getenv("XHS_API_PORT", 5005)
+    # 不是数字的话转为 int
+    try:
+        port = int(port)
+    except ValueError:
+        print(f"Invalid port number: {port}. Using default port 5005.")
+        port = 5005
+    # 启动 FastAPI 应用
     uvicorn.run(app, host="0.0.0.0", port=port)
\ No newline at end of file