diff --git a/links/tasks.py b/links/tasks.py
index 9e6130b..1bfd6b9 100644
--- a/links/tasks.py
+++ b/links/tasks.py
@@ -1,4 +1,5 @@
 from django.utils import timezone
+from django.db.models import F
 from datetime import timedelta
 import requests
 from bs4 import BeautifulSoup