diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index da38750..33851e6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,6 +1,3 @@
-# This workflow will install Python dependencies, run tests and lint with a single version of Python
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
-
 name: Python application
 
 on: [push, pull_request]
@@ -11,44 +8,36 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        django_version: [ '3.2', '4.0', '4.1' ]
-        python_version: [ '3.7', '3.8', '3.9', '3.10' ]
-        exclude:
-
-          - django_version: '4.0'
-            python_version: '3.7'
-
-          - django_version: '4.1'
-            python_version: '3.7'
+        python_version:
+        - '3.8'
+        - '3.9'
+        - '3.10'
+        - '3.11'
+        - '3.12'
     env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
+
     - name: Set up Python ${{ matrix.python_version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python_version }}
+
     - name: Cache pip
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         # This path is specific to Ubuntu
         path: ~/.cache/pip
-        key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ matrix.django_version }}
+        key: ${{ runner.os }}-pip-${{ matrix.python_version }}
+
     - name: Install dependencies
       run: |
         sudo apt-get update -qq
         sudo apt-get install -y libproj-dev libgeos-dev gdal-bin libgdal-dev libsqlite3-mod-spatialite
         python -m pip install --upgrade pip
-        pip install -U flake8 coveralls argparse
-        pip install -U Django~=${{ matrix.django_version }}
-    - name: Lint with flake8
-      run: |
-        flake8 --ignore=E501,W504 djgeojson
-    - name: Test Django
-      run: |
-        python -W error::DeprecationWarning -W error::PendingDeprecationWarning -m coverage run ./quicktest.py djgeojson
-    - name: Coverage
-      if: ${{ success() }}
-      run: |
-        coveralls --service=github
+        python -m pip install --upgrade 'tox>=4.0.0rc3'
+
+    - name: Run tox targets for ${{ matrix.python_version }}
+      run: tox run -f py$(echo ${{ matrix.python_version }} | tr -d .)
diff --git a/djgeojson/__init__.py b/djgeojson/__init__.py
index 17af772..e27b3fb 100644
--- a/djgeojson/__init__.py
+++ b/djgeojson/__init__.py
@@ -1,13 +1 @@
-#: Module version, as defined in PEP-0396.
-from pkg_resources import DistributionNotFound
-
-pkg_resources = __import__('pkg_resources')
-try:
-    distribution = pkg_resources.get_distribution('django-geojson')
-    __version__ = distribution.version
-except (AttributeError, DistributionNotFound):
-    __version__ = 'unknown'
-    import warnings
-    warnings.warn('No distribution found.')
-
 GEOJSON_DEFAULT_SRID = 4326
diff --git a/djgeojson/fields.py b/djgeojson/fields.py
index 1121803..6d51d81 100644
--- a/djgeojson/fields.py
+++ b/djgeojson/fields.py
@@ -1,9 +1,10 @@
 from __future__ import unicode_literals
 
+from django.core.exceptions import ValidationError
 from django.db.models import JSONField
-from django.forms.fields import JSONField as JSONFormField, InvalidJSONInput
+from django.forms.fields import InvalidJSONInput
+from django.forms.fields import JSONField as JSONFormField
 from django.forms.widgets import HiddenInput
-from django.core.exceptions import ValidationError
 from django.utils.translation import gettext_lazy as _
 
 try:
diff --git a/djgeojson/http.py b/djgeojson/http.py
index f35d9bb..d4d1f88 100644
--- a/djgeojson/http.py
+++ b/djgeojson/http.py
@@ -1,4 +1,5 @@
 import warnings
+
 from django.http import HttpResponse
 
 
diff --git a/djgeojson/serializers.py b/djgeojson/serializers.py
index e5b96cc..a1a8a3b 100644
--- a/djgeojson/serializers.py
+++ b/djgeojson/serializers.py
@@ -7,9 +7,8 @@
 """
 import json
 import logging
-from io import StringIO  # NOQA
-
 from contextlib import contextmanager
+from io import StringIO  # NOQA
 
 import django
 from django.db.models.base import Model
@@ -20,19 +19,21 @@
     from django.db.models.query import QuerySet
     ValuesQuerySet = None
 
-from django.forms.models import model_to_dict
-from django.core.serializers.python import (_get_model,
-                                            Serializer as PythonSerializer,
-                                            Deserializer as PythonDeserializer)
+from django.core.exceptions import ImproperlyConfigured
+from django.core.serializers.base import (
+    DeserializationError,
+    SerializationError,
+)
 from django.core.serializers.json import DjangoJSONEncoder
-from django.core.serializers.base import SerializationError, DeserializationError
+from django.core.serializers.python import Deserializer as PythonDeserializer
+from django.core.serializers.python import Serializer as PythonSerializer
+from django.core.serializers.python import _get_model
+from django.forms.models import model_to_dict
 from django.utils.encoding import smart_str
-from django.core.exceptions import ImproperlyConfigured
 
 try:
-    from django.contrib.gis.geos import WKBWriter
-    from django.contrib.gis.geos import GEOSGeometry
     from django.contrib.gis.db.models.fields import GeometryField
+    from django.contrib.gis.geos import GEOSGeometry, WKBWriter
 except (ImportError, ImproperlyConfigured):
     from .nogeos import WKBWriter
     from .nogeos import GEOSGeometry
@@ -41,7 +42,6 @@
 from . import GEOJSON_DEFAULT_SRID
 from .fields import GeoJSONField
 
-
 logger = logging.getLogger(__name__)
 
 
diff --git a/djgeojson/templatetags/geojson_tags.py b/djgeojson/templatetags/geojson_tags.py
index 4e6a1ba..efe5572 100644
--- a/djgeojson/templatetags/geojson_tags.py
+++ b/djgeojson/templatetags/geojson_tags.py
@@ -5,15 +5,14 @@
 from django.core.exceptions import ImproperlyConfigured
 
 try:
-    from django.contrib.gis.geos import GEOSGeometry
     from django.contrib.gis.db.models.fields import GeometryField
+    from django.contrib.gis.geos import GEOSGeometry
 except (ImportError, ImproperlyConfigured):
     from ..nogeos import GEOSGeometry
     from ..fields import GeometryField
 
 from .. import GEOJSON_DEFAULT_SRID
-from ..serializers import Serializer, DjangoGeoJSONEncoder
-
+from ..serializers import DjangoGeoJSONEncoder, Serializer
 
 register = template.Library()
 
diff --git a/djgeojson/tests.py b/djgeojson/tests.py
index a7770bd..e9274f5 100644
--- a/djgeojson/tests.py
+++ b/djgeojson/tests.py
@@ -3,20 +3,19 @@
 import json
 
 import django
-from django.forms import HiddenInput
-from django.test import TestCase
 from django.conf import settings
-from django.core import serializers
-from django.core.exceptions import ValidationError, SuspiciousOperation
 from django.contrib.gis.db import models
-from django.contrib.gis.geos import LineString, Point, GeometryCollection
+from django.contrib.gis.geos import GeometryCollection, LineString, Point
+from django.core import serializers
+from django.core.exceptions import SuspiciousOperation, ValidationError
+from django.forms import HiddenInput
+from django.test import TestCase
 from django.utils.encoding import smart_str
 
-from .templatetags.geojson_tags import geojsonfeature
+from .fields import GeoJSONField, GeoJSONFormField, GeoJSONValidator
 from .serializers import Serializer
+from .templatetags.geojson_tags import geojsonfeature
 from .views import GeoJSONLayerView, TiledGeoJSONLayerView
-from .fields import GeoJSONField, GeoJSONFormField, GeoJSONValidator
-
 
 settings.SERIALIZATION_MODULES = {'geojson': 'djgeojson.serializers'}
 
diff --git a/djgeojson/views.py b/djgeojson/views.py
index 66459cb..20e0c6a 100644
--- a/djgeojson/views.py
+++ b/djgeojson/views.py
@@ -7,11 +7,10 @@
     from django.contrib.gis.db.models.functions import Intersection
 except (ImportError, ImproperlyConfigured):
     Intersection = None
-from django.views.generic import ListView
+from django.core.exceptions import ImproperlyConfigured, SuspiciousOperation
 from django.utils.decorators import method_decorator
 from django.views.decorators.gzip import gzip_page
-from django.core.exceptions import SuspiciousOperation
-from django.core.exceptions import ImproperlyConfigured
+from django.views.generic import ListView
 
 try:
     from django.contrib.gis.geos import Polygon
@@ -26,9 +25,9 @@
 except (ImportError, ImproperlyConfigured):
     from .fields import PointField
 
+from . import GEOJSON_DEFAULT_SRID
 from .http import HttpGeoJSONResponse
 from .serializers import Serializer as GeoJSONSerializer
-from . import GEOJSON_DEFAULT_SRID
 
 
 class GeoJSONResponseMixin(object):
diff --git a/docs/conf.py b/docs/conf.py
index 04d9fde..cb8cd7d 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -12,8 +12,8 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-import sys
 import os
+import sys
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
diff --git a/quicktest.py b/quicktest.py
index c8d17a4..f22dbed 100644
--- a/quicktest.py
+++ b/quicktest.py
@@ -1,6 +1,6 @@
+import argparse
 import os
 import sys
-import argparse
 
 import django
 from django.conf import settings
diff --git a/setup.py b/setup.py
index 13788e4..ee3dbb2 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,7 @@
 import os
 from io import open
-from setuptools import setup, find_packages
+
+from setuptools import find_packages, setup
 
 here = os.path.abspath(os.path.dirname(__file__))
 
@@ -33,9 +34,10 @@
                  'Environment :: Web Environment',
                  'Framework :: Django',
                  'Development Status :: 5 - Production/Stable',
-                 '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',
+                 'Programming Language :: Python :: 3.12',
     ],
 )
diff --git a/tox.ini b/tox.ini
index d551d5f..a8c542b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,26 +1,31 @@
 [tox]
 skipsdist = True
 envlist =
-    {py37}-django-{32}
-    {py38}-django-{32,40,41}
-    {py39}-django-{32,40,41}
-    {py310}-django-{32,40,41}
-    {py310}-isort
-    {py310}-flake8
+    flake8
+    isort
+    py38-django{32,40,41,42}
+    py39-django{32,40,41,42}
+    py310-django{32,40,41,42,50}
+    py311-django{41,42,50}
+    py312-django{42,50}
 
 [testenv]
 setenv =
     PYTHONPATH = {toxinidir}:{toxinidir}
 deps =
-    flake8: flake8
-    django-32: Django>=3.2,<3.3
-    django-40: Django>=4.0,<4.1
-    django-41: Django>=4.1,<4.2
-    isort: isort
+    django32: Django>=3.2,<4.0
+    django40: Django>=4.0,<4.1
+    django41: Django>=4.1,<4.2
+    django42: Django>=4.2,<5.0
+    django50: Django>=5.0,<5.1
 commands =
-    isort: isort .
-    flake8: flake8 --ignore=E501,W504 djgeojson
-    django: python -W error::DeprecationWarning -W error::PendingDeprecationWarning -W ignore:::site -W ignore:::distutils {toxinidir}/quicktest.py djgeojson
+    python \
+        -W error::DeprecationWarning \
+        -W error::PendingDeprecationWarning \
+        -W ignore:::site \
+        -W ignore:::distutils \
+        -m coverage run \
+        {toxinidir}/quicktest.py djgeojson
 
 [testenv:docs]
 basepython = python
@@ -28,10 +33,22 @@ changedir = docs
 deps =
     sphinx
     sphinx_rtd_theme
-    Django>=3.2,<4.1
+    Django>=5.0,<5.1
 commands =
     sphinx-build -W -b html -d build/doctrees . build/html
 
+[testenv:flake8]
+usedevelop = false
+basepython = python3.12
+deps = flake8
+commands = flake8 --ignore=E501,W504 djgeojson
+
+[testenv:isort]
+usedevelop = false
+basepython = python3.12
+deps = isort
+commands = isort .
+
 [isort]
 skip_gitignore = true
 include_trailing_comma = true