diff --git a/webp_to_png/tools.py b/webp_to_png/tools.py
index 5f8b19c..b20ef8c 100644
--- a/webp_to_png/tools.py
+++ b/webp_to_png/tools.py
@@ -1,6 +1,7 @@
 import os
+from typing import Any
 from PIL import Image
-def convert_webp_to_png(webp_dir:str, png_dir:str,window)->None:
+def convert_webp_to_png(webp_dir:str, png_dir:str,window:Any)->None:
     # 获取目录中以.webp结尾的文件列表
     webp_files = [f for f in os.listdir(webp_dir) if f.endswith('.webp')]
     # 获取文件总数