diff --git a/setup.py b/setup.py
index 7df4229..32355fc 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 
 REQUIREMENTS = [
-    'django-cms>=3.7',
+    'django-cms>=3.7,<4',
     'django-filer>=1.7',
     'djangocms-attributes-field>=1',
     'djangocms-text-ckeditor>=3.1.0',