diff --git a/tox.ini b/tox.ini
index 8805819f..d0f3f7e3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,7 +21,7 @@ deps =
   pylint-django<0.8.1
   django-webtest
   pytz
-  django-mellon>=1.2.35
+  django111: django-mellon>=1.2.35,!=1.6
   django22: django-mellon>=1.6.1
   pytest-freezegun
   django111: django>=1.11,<1.12