diff --git a/media_platform/douyin/core.py b/media_platform/douyin/core.py
index dc50aaf..cc6a21f 100644
--- a/media_platform/douyin/core.py
+++ b/media_platform/douyin/core.py
@@ -364,7 +364,7 @@ class DouYinCrawler(AbstractCrawler):
             content = await self.dy_client.get_aweme_media(url)
             if content is None:
                 continue
-            extension_file_name = f"{picNum}.jpeg"
+            extension_file_name = f"{picNum:>03d}.jpeg"
             picNum += 1
             await douyin_store.update_dy_aweme_image(aweme_id, content, extension_file_name)
 
@@ -384,10 +384,8 @@ class DouYinCrawler(AbstractCrawler):
 
         if not video_download_url:
             return
-        videoNum = 0
         content = await self.dy_client.get_aweme_media(video_download_url)
         if content is None:
             return
-        extension_file_name = f"{videoNum}.mp4"
-        videoNum += 1
+        extension_file_name = f"video.mp4"
         await douyin_store.update_dy_aweme_video(aweme_id, content, extension_file_name)