diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9637202..2d19b0a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,10 @@
 name: CI
 
-on: [push]
+on:
+  push:
+    branches:
+      - trunk
+  pull_request:
 
 jobs:
   build:
@@ -8,12 +12,12 @@ jobs:
     strategy:
       max-parallel: 5
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.8, 3.9, "3.10", "3.11"]
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
diff --git a/docs/install.rst b/docs/install.rst
index 081db3c..8090d70 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -4,13 +4,14 @@
 Installation guide
 ==================
 
-The |release| release of django-soapbox supports Django 2.2 and
-3.0 on the following Python versions:
+The |release| release of django-soapbox supports Django 3.2, 4.1 and
+4.2 on the following Python versions:
 
-* Django 2.2 supports Python 3.5, 3.6, 3.7, and 3.8.
+* Django 3.2 supports Python 3.8, 3.9, and 3.10.
 
-* Django 3.0 supports Python 3.6, 3.7, and 3.8.
+* Django 4.1 supports Python 3.8, 3.9, 3.10 and 3.11.
 
+* Django 4.2 supports Python 3.8, 3.9, 3.10 and 3.11.
 
 Normal installation
 -------------------
diff --git a/runtests.py b/runtests.py
index d912f4f..0ed4da5 100644
--- a/runtests.py
+++ b/runtests.py
@@ -60,6 +60,8 @@
             },
         }
     ],
+    "SECRET_KEY": "secret",
+    "DEFAULT_AUTO_FIELD": "django.db.models.BigAutoField",
 }
 
 
diff --git a/setup.py b/setup.py
index 29b0005..c698f76 100644
--- a/setup.py
+++ b/setup.py
@@ -21,19 +21,20 @@
         "Development Status :: 5 - Production/Stable",
         "Environment :: Web Environment",
         "Framework :: Django",
-        "Framework :: Django :: 2.2",
-        "Framework :: Django :: 3.0",
+        "Framework :: Django :: 3.2",
+        "Framework :: Django :: 4.1",
+        "Framework :: Django :: 4.2",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: BSD License",
         "Operating System :: OS Independent",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Topic :: Utilities",
     ],
-    python_requires=">=3.5",
-    install_requires=["Django>=2.2"],
+    python_requires=">=3.8",
+    install_requires=["Django>=3.2"],
 )
diff --git a/src/soapbox/models.py b/src/soapbox/models.py
index c381363..09bdcaa 100644
--- a/src/soapbox/models.py
+++ b/src/soapbox/models.py
@@ -58,17 +58,17 @@ class Message(models.Model):
 
     message = models.TextField()
     is_global = models.BooleanField(
-        default=False, help_text=u"If checked, this message will display on all pages."
+        default=False, help_text="If checked, this message will display on all pages."
     )
     is_active = models.BooleanField(
-        default=True, help_text=u"Only active messages will be displayed."
+        default=True, help_text="Only active messages will be displayed."
     )
     url = models.CharField(
         "URL",
         max_length=255,
         blank=True,
         null=True,
-        help_text=u"Message will be displayed on any URL which matches this.",
+        help_text="Message will be displayed on any URL which matches this.",
     )
 
     objects = MessageManager()
diff --git a/tox.ini b/tox.ini
index 17944a6..cff92f8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,7 +23,8 @@
 # Environment matrix.
 [tox]
 envlist =
-  py{36,37,38,39}-django{22,30,31}
+  py{38,39,310}-django{32,41,42}
+  py{311}-django{41,42}
   black
   check-description
   check-manifest
@@ -35,10 +36,10 @@ envlist =
 # Configuration for running on GitHub Actions via tox-gh-actions.
 [gh-actions]
 python =
-  3.6: py36
-  3.7: py37
   3.8: py38
-  3.9: py39, black, check-description, check-manifest, docs, flake8, isort, spelling
+  3.9: py39
+  3.10: py310
+  3.11: py311, black, check-description, check-manifest, docs, flake8, isort, spelling
 
 
 # The base test environment -- runs the unit test suite with coverage.
@@ -77,9 +78,9 @@ commands =
   coverage report -m
 deps =
   coverage
-  django22: Django>=2.2,<3.0
-  django30: Django>=3.0,<3.1
-  django31: Django>=3.1,<3.2
+  django32: Django>=3.2,<4.0
+  django41: Django>=4.1,<4.2
+  django42: Django>=4.2,<4.3
 
 
 # Documentation checks.