diff --git a/kallithea/lib/celerylib/tasks.py b/kallithea/lib/celerylib/tasks.py
--- a/kallithea/lib/celerylib/tasks.py
+++ b/kallithea/lib/celerylib/tasks.py
@@ -26,7 +26,7 @@ Original author and date, and relevant c
 :license: GPLv3, see LICENSE.md for more details.
 """
 
-from celery.decorators import task
+from celery.task import task
 
 import os
 import traceback