diff --git a/django/db/models/query.py b/django/db/models/query.py
index 9ecfb745fd..e16fca1390 100644
--- a/django/db/models/query.py
+++ b/django/db/models/query.py
@@ -2,7 +2,6 @@
 The main QuerySet implementation. This provides the public API for the ORM.
 """
 
-from copy import deepcopy
 from itertools import izip
 
 from django.db import connections, router, transaction, IntegrityError