diff --git a/seahub/utils/__init__.py b/seahub/utils/__init__.py
index 076c289dcd..00d4b791b4 100644
--- a/seahub/utils/__init__.py
+++ b/seahub/utils/__init__.py
@@ -17,7 +17,6 @@ from datetime import datetime
 from urllib.parse import urlparse, urljoin
 import json
 
-import ccnet
 from constance import config
 import seaserv
 from seaserv import seafile_api