diff --git a/pp.py b/pp.py
index 2f266ea..5fe6d7d 100755
--- a/pp.py
+++ b/pp.py
@@ -36,14 +36,15 @@ def download_image(url: str) -> Image.Image:
         return None
     try:
         if url.startswith('http://image.gameuiux.cn/') or url.startswith('https://image.gameuiux.cn/'):
-            url = url.replace('http://image.gameuiux.cn/',
-                              '').replace('https://image.gameuiux.cn/', '')
-            oss_auth = oss2.Auth(
-                config['OSS_ACCESS_KEY_ID'], config['OSS_ACCESS_KEY_SECRET'])
-            return Image.open(io.BytesIO(oss2.Bucket(oss_auth, f'http://{config["OSS_HOST"]}', config['OSS_BUCKET_NAME']).get_object(url).read()))
+            url = url.replace('http://image.gameuiux.cn/', '').replace('https://image.gameuiux.cn/', '')
+            oss_auth = oss2.Auth(config['OSS_ACCESS_KEY_ID'], config['OSS_ACCESS_KEY_SECRET'])
+            img = Image.open(io.BytesIO(oss2.Bucket(oss_auth, f'http://{config["OSS_HOST"]}', config['OSS_BUCKET_NAME']).get_object(url).read()))
         else:
             response = requests.get(url)
-            return Image.open(io.BytesIO(response.content))
+            img = Image.open(io.BytesIO(response.content))
+        if img.mode != 'RGB'
+            img = img.convert('RGB')
+        return img
     except Exception as e:
         print(f'图片从{url}下载失败，错误信息为：{e}')
         return None