diff --git a/pinax/stripe/tests/test_models.py b/pinax/stripe/tests/test_models.py
index 088f98b13..53ef04645 100644
--- a/pinax/stripe/tests/test_models.py
+++ b/pinax/stripe/tests/test_models.py
@@ -85,7 +85,7 @@ def test_event_processing_exception_str(self):
         self.assertTrue("Event=" in str(e))
 
     def test_event_str_and_repr(self):
-        created_at = datetime.datetime.utcnow()
+        created_at = timezone.now()
         created_at_iso = created_at.replace(microsecond=0).isoformat()
         e = Event(kind="customer.deleted", webhook_message={}, created_at=created_at)
         self.assertTrue("customer.deleted" in str(e))