diff --git a/setup.py b/setup.py
index 8a0840390b3..b7c1b2852c8 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 
 
 REQUIREMENTS = [
-    'Django>=2.2',
+    'Django>=2.2,<4.0',
     'django-classy-tags>=0.7.2',
     'django-formtools>=2.1',
     'django-treebeard>=4.3',