diff --git a/tests/test_invoices.py b/tests/test_invoices.py
index 34e6dba..636ff13 100644
--- a/tests/test_invoices.py
+++ b/tests/test_invoices.py
@@ -4,7 +4,6 @@
 from mock import patch
 
 from django.conf import settings
-from django.test import override_settings
 
 from oscar.core.loading import get_model
 from oscar.test.testcases import WebTestCase