diff --git a/vj4/template.py b/vj4/template.py
index d162d4971..3d23ada8a 100644
--- a/vj4/template.py
+++ b/vj4/template.py
@@ -79,7 +79,7 @@ def gravatar_url(gravatar, size=200):
     gravatar_hash = hashlib.md5(gravatar.lower().encode()).hexdigest()
   else:
     gravatar_hash = ''
-  return ('//gravatar.proxy.ustclug.org/avatar/' + gravatar_hash + "?" +
+  return ('//cn.gravatar.com/avatar/' + gravatar_hash + "?" +
           parse.urlencode({'d': 'mm', 's': str(size)}))