diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2c57cba90..a344ba8f3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,19 +16,13 @@ jobs:
       max-parallel: 5
       matrix:
         python-version: ['3.7', '3.8', '3.9', '3.10']
-        django-version: ['2.2', '3.1', '3.2', 'main']
-        drf-version: ['3.10', '3.11', '3.12']
+        django-version: ['2.2', '3.2', '4.0', 'main']
+        drf-version: ['3.10', '3.11', '3.12', '3.13']
         exclude:
           - python-version: '3.7'
             django-version: 'main'
-          - python-version: '3.8'
-            django-version: 'main'
-          - django-version: '3.1'
-            drf-version: '3.10'
           - python-version: '3.10'
             django-version: '2.2'
-          - python-version: '3.10'
-            django-version: '3.1'
 
     steps:
     - uses: actions/checkout@v2
diff --git a/setup.py b/setup.py
index 3d4e7e235..286921f00 100755
--- a/setup.py
+++ b/setup.py
@@ -66,8 +66,8 @@
         "Environment :: Web Environment",
         "Framework :: Django",
         "Framework :: Django :: 2.2",
-        "Framework :: Django :: 3.1",
         "Framework :: Django :: 3.2",
+        "Framework :: Django :: 4.0",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
diff --git a/tox.ini b/tox.ini
index 8839a7ef4..bcd2cd76c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,29 +1,28 @@
 [tox]
 envlist=
     py{37,38,39}-dj22-drf310-tests
-    py{37,38,39}-dj{22,31}-drf{311,312}-tests
-    py{37,38,39,310}-dj32-drf{311,312}-tests
-    py{38,39,310}-djmain-drf312-tests
+    py{37,38,39,310}-dj{22,32}-drf{311,312,313}-tests
+    py{38,39,310}-dj{40,main}-drf313-tests
     docs
 
 [gh-actions]
 python=
     3.7: py37
-    3.8: py38, docs, lint
+    3.8: py38, docs
     3.9: py39
     3.10: py310
 
 [gh-actions:env]
 DJANGO=
     2.2: dj22
-    3.0: dj30
-    3.1: dj31
     3.2: dj32
+    4.0: dj40
     main: djmain
 DRF=
     3.10: drf310
     3.11: drf311
     3.12: drf312
+    3.13: drf313
 
 [testenv]
 usedevelop=True
@@ -35,13 +34,13 @@ setenv=
     PYTHONDONTWRITEBYTECODE=1
 deps=
     dj22: Django>=2.2,<2.3
-    dj31: Django>=3.1,<3.2
     dj32: Django>=3.2,<3.3
+    dj40: Django>=4.0,<4.1
     drf310: djangorestframework>=3.10,<3.11
     drf311: djangorestframework>=3.11,<3.12
     drf312: djangorestframework>=3.12,<3.13
+    drf313: djangorestframework>=3.13,<3.14
     djmain: https://github.com/django/django/archive/main.tar.gz
-    djmain: pytz
 allowlist_externals=make
 
 [testenv:docs]