diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 1556b707..fc3ae279 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -16,11 +16,9 @@ jobs:
     strategy:
       matrix:
         django_version:
-        - '3.2'
-        - '4.0'
-        - '4.1'
         - '4.2'
         - '5.0'
+        - '5.1'
         python_version:
         - '3.8'
         - '3.9'
@@ -35,23 +33,14 @@ jobs:
           - django_version: '5.0'
             python_version: '3.9'
 
-          - django_version: '3.2'
-            python_version: '3.11'
-
-          - django_version: '4.0'
-            python_version: '3.11'
-
-          - django_version: '3.2'
-            python_version: '3.12'
-
-          - django_version: '4.0'
-            python_version: '3.12'
+          - django_version: '5.1'
+            python_version: '3.8'
 
-          - django_version: '4.1'
-            python_version: '3.12'
+          - django_version: '5.1'
+            python_version: '3.9'
 
         include:
-          - django_version: '3.2'
+          - django_version: '4.2'
             python_version: '3.8'
             database: 'sqlite'
     env:
diff --git a/CHANGES b/CHANGES
index 5059e69a..4b342944 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2,11 +2,13 @@
 CHANGELOG
 =========
 
-0.30.2 (unreleased)
+0.31.0 (unreleased)
 -------------------
 
 - Fix icon control.
 - Fix JS error if with-forms does not exists #379 #380
+- Support Django 5.1.
+- Drop support for Django < 4.2.
 
 0.30.1 (2024-06-17)
 -------------------
diff --git a/leaflet/__init__.py b/leaflet/__init__.py
index 87e517cf..d1f2f303 100644
--- a/leaflet/__init__.py
+++ b/leaflet/__init__.py
@@ -1,7 +1,6 @@
 from collections import OrderedDict
 from urllib.parse import urlparse
 
-import django
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 from django.templatetags.static import static
@@ -174,7 +173,3 @@ def _normalize_plugins_config():
             PLUGINS[PLUGIN_ALL].setdefault(resource_type, []).extend(urls)
 
     PLUGINS['__is_normalized__'] = True
-
-
-if django.VERSION < (3, 2):
-    default_app_config = 'leaflet.apps.LeafletConfig'
diff --git a/leaflet/tests/tests.py b/leaflet/tests/tests.py
index c231942a..e586101b 100644
--- a/leaflet/tests/tests.py
+++ b/leaflet/tests/tests.py
@@ -309,12 +309,11 @@ def test_widget_template_overriden(self):
         widget = self.formfield.widget
         output = widget.render('geom', '', {'id': 'geom'})
         self.assertIn('<div id="geom-div-map">', output)
-        link_type = 'type="text/css" ' if django.get_version() < '4.1' else ''
         self.assertEqual(
             list(widget.media.render_css()),
             [
-                f'<link href="/static/leaflet/leaflet.css" {link_type}media="screen" rel="stylesheet">',
-                f'<link href="/static/leaflet/leaflet_django.css" {link_type}media="screen" rel="stylesheet">',
-                f'<link href="/static/leaflet/draw/leaflet.draw.css" {link_type}media="screen" rel="stylesheet">',
+                '<link href="/static/leaflet/leaflet.css" media="screen" rel="stylesheet">',
+                '<link href="/static/leaflet/leaflet_django.css" media="screen" rel="stylesheet">',
+                '<link href="/static/leaflet/draw/leaflet.draw.css" media="screen" rel="stylesheet">',
             ]
         )
diff --git a/quicktest.py b/quicktest.py
index 652c70ee..01e0a20f 100644
--- a/quicktest.py
+++ b/quicktest.py
@@ -57,6 +57,7 @@ def run_tests(self):
             }
         conf = {
             'DATABASES': databases,
+            'DEFAULT_AUTO_FIELD': 'django.db.models.BigAutoField',
             'INSTALLED_APPS': self.INSTALLED_APPS + self.apps,
             'STATIC_URL': '/static/',
             'MIDDLEWARE': [
@@ -77,8 +78,6 @@ def run_tests(self):
                 'APP_DIRS': True,
             }],
         }
-        if django.VERSION >= (3, 2):
-            conf["DEFAULT_AUTO_FIELD"] = "django.db.models.BigAutoField"
         if 'SPATIALITE_LIBRARY_PATH' in os.environ:
             # If you get SpatiaLite-related errors, refer to this document
             # to find out the proper SPATIALITE_LIBRARY_PATH value
diff --git a/tox.ini b/tox.ini
index 38d71dfb..c36acc12 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,22 +1,18 @@
 [tox]
 envlist =
-    {py38,py39,py310}-django32
-    {py38,py39,py310}-django40
-    {py38,py39,py310,py311}-django41
     {py38,py39,py310,py311,py312}-django42
     {py310,py311,py312}-django50
+    {py310,py311,py312}-django51
     {py310,py311,py312}-djangomain
 
 [testenv]
 commands = python -W error::DeprecationWarning -W error::PendingDeprecationWarning -m coverage run ./quicktest.py leaflet --db={env:DATABASE:}
 deps =
-    django32: Django~=3.2
-    django40: Django~=4.0
-    django41: Django~=4.1
     django42: Django~=4.2
     django50: Django~=5.0
+    django51: Django~=5.1
     djangomain: https://github.com/django/django/archive/main.tar.gz
-    postgres: psycopg2-binary
+    postgres: psycopg
     coverage
 passenv = DATABASE,SPATIALITE_LIBRARY_PATH