diff --git a/setup.py b/setup.py
index 206eab9..76a31ad 100644
--- a/setup.py
+++ b/setup.py
@@ -33,6 +33,7 @@ setup(
         "Framework :: Django",
         "Framework :: Django :: 2.2",
         "Framework :: Django :: 3.2",
+        "Framework :: Django :: 4.0",
         "License :: OSI Approved :: MIT License",
     ],
 )
diff --git a/tox.ini b/tox.ini
index 19601b1..0075bc9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 envlist =
     {py37,py38,py39}-django22
     {py37,py38,py39,py10}-django32
-    {py38,py39,py10}-djangomain
+    {py38,py39,py10}-django{40,main}
     py38-docs
     py38-qa
 
@@ -13,6 +13,7 @@ commands =
 deps =
     django22: Django>=2.2,<2.3
     django32: Django>=3.2,<3.3
+    django40: Django>=4.0,<4.1
     djangomain: https://github.com/django/django/archive/main.tar.gz
     # Test requirements
     coverage