diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 985520d..7a4b073 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,26 +13,18 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-          - 3.8
-          - 3.9
           - '3.10'
           - '3.11'
           - '3.12'
         tox-environment:
-          - dj42
           - dj50
+          - dj51
+          - djmain
         include:
-          - python-version: '3.10'
-            tox-environment: djmain
-          - python-version: '3.11'
-            tox-environment: djmain
-          - python-version: '3.12'
-            tox-environment: djmain
-        exclude:
           - python-version: '3.8'
-            tox-environment: dj50
+            tox-environment: dj42
           - python-version: '3.9'
-            tox-environment: dj50
+            tox-environment: dj42
 
     env:
       COVERALLS_FLAG_NAME: Python ${{ matrix.python-version }} / ${{ matrix.tox-environment }}
diff --git a/pyproject.toml b/pyproject.toml
index 5beb0a0..618524f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,6 +17,7 @@ classifiers = [
     "Framework :: Django",
     "Framework :: Django :: 4.2",
     "Framework :: Django :: 5.0",
+    "Framework :: Django :: 5.1",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
diff --git a/tox.ini b/tox.ini
index ee0a7b4..10f21f1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,6 +5,7 @@ envlist =
     isort
     dj42
     dj50
+    dj51
     djmain
     mypy
 isolated_build = true
@@ -16,6 +17,7 @@ deps =
     coverage
     dj42: Django>=4.2,<4.3
     dj50: Django>=5.0b1,<5.1
+    dj51: Django>=5.1b1,<5.2
     djmain: https://github.com/django/django/archive/main.tar.gz
     djangorestframework
 extras = phonenumberslite