diff --git a/setup.py b/setup.py
index f428eecd7..f168aad56 100755
--- a/setup.py
+++ b/setup.py
@@ -118,7 +118,7 @@ setup(name="authentic2",
           'django>=1.11,<2.0',
           'requests>=2.3',
           'requests-oauthlib',
-          'django-model-utils>=2.4',
+          'django-model-utils>=2.4,<4',
           'dnspython>=1.10',
           'Django-Select2>5,<6',
           'django-tables2>=1.0,<2.0',