diff --git a/README.rst b/README.rst
index 6db8bbb0b..7909d8fa6 100644
--- a/README.rst
+++ b/README.rst
@@ -41,6 +41,7 @@ Releases
 
 Current development branches:
 
+* Grappelli 4.0.1 (Development version for Django 5.0, see branch Stable/4.0.x)
 * Grappelli 3.0.9 (Development version for Django 4.0, see branch Stable/3.0.x)
 * Grappelli 2.15.7 (Development version for Django 3.2, see branch Stable/2.15.x)
 
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 8756537b3..bf93a8703 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -8,6 +8,11 @@
 Changelog
 =========
 
+4.0.1 (not yet released)
+------------------------
+
+* Compatibility with Django 5.x
+
 3.0.9 (not yet released)
 ------------------------
 
diff --git a/docs/conf.py b/docs/conf.py
index b39535c30..760acb54b 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -52,9 +52,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = "3.0.9"
+version = "4.0.1"
 # The full version, including alpha/beta/rc tags.
-release = "3.0.9"
+release = "4.0.1"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/docs/index.rst b/docs/index.rst
index bc3aa1764..9851b4ad1 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -4,7 +4,7 @@
    contain the root `toctree` directive.
 .. |grappelli| replace:: Grappelli
 .. |filebrowser| replace:: FileBrowser
-.. |grappelliversion| replace:: 3.0.9
+.. |grappelliversion| replace:: 4.0.1
 
 .. _index:
 
@@ -16,7 +16,7 @@ Documentation
 This documentation covers version |version| of |grappelli|. |grappelli| is a grid-based alternative/extension to the `Django <http://www.djangoproject.com>`_ administration interface.
 
 .. note::
-    |grappelli| |version| requires Django 4.0. More on :ref:`versions`.
+    |grappelli| |version| requires Django 5.0. More on :ref:`versions`.
 
 Installation & Setup
 --------------------
diff --git a/docs/quickstart.rst b/docs/quickstart.rst
index 21ce74d62..1dd1986aa 100644
--- a/docs/quickstart.rst
+++ b/docs/quickstart.rst
@@ -1,13 +1,13 @@
 .. |grappelli| replace:: Grappelli
 .. |filebrowser| replace:: FileBrowser
-.. |grappelliversion| replace:: 3.0.9
+.. |grappelliversion| replace:: 4.0.1
 
 .. _quickstart:
 
 Quick start guide
 =================
 
-For using |grappelli| |grappelliversion|, `Django 4.0 <http://www.djangoproject.com>`_ needs to be installed and an `Admin Site <http://docs.djangoproject.com/en/4.0/ref/contrib/admin/>`_ has to be activated.
+For using |grappelli| |grappelliversion|, `Django 5.0 <http://www.djangoproject.com>`_ needs to be installed and an `Admin Site <http://docs.djangoproject.com/en/5.0/ref/contrib/admin/>`_ has to be activated.
 
 Installation
 ------------
diff --git a/docs/releasenotes.rst b/docs/releasenotes.rst
index 201141a31..691edec46 100644
--- a/docs/releasenotes.rst
+++ b/docs/releasenotes.rst
@@ -5,13 +5,13 @@
 
 .. _releasenotes:
 
-Grappelli 3.0.x Release Notes
+Grappelli 4.0.x Release Notes
 =============================
 
-**Grappelli 3.0.x is compatible with Django 4.0**.
+**Grappelli 4.0.x is compatible with Django 5.0**.
 
-Update from Grappelli 2.15.x
-----------------------------
+Update from Grappelli 3.x
+-------------------------
 
-* Update Django to 4.0 and check https://docs.djangoproject.com/en/4.0/releases/4.0/
-* Update Grappelli to 3.0.x
+* Update Django to 5.x and check the Django release notes
+* Update Grappelli to 4.x
diff --git a/grappelli/__init__.py b/grappelli/__init__.py
index 3286ff9cf..269d18fef 100644
--- a/grappelli/__init__.py
+++ b/grappelli/__init__.py
@@ -1 +1 @@
-VERSION = "3.0.9"
+VERSION = "4.0.1"
diff --git a/package.json b/package.json
index b8514f80c..ae5f7ea59 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "django-grappelli",
-  "version": "3.0.9",
+  "version": "4.0.1",
   "description": "A jazzy skin for the Django admin interface",
   "author": "Patrick Kranzlmueller, Axel Swoboda",
   "license": "New BSD",
diff --git a/setup.py b/setup.py
index 41bee1d69..6a8e57936 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@ def read(fname):
 
 setup(
     name="django-grappelli",
-    version="3.0.9",
+    version="4.0.1",
     description="A jazzy skin for the Django Admin-Interface.",
     long_description=read("README.rst"),
     url="http://django-grappelli.readthedocs.org",
diff --git a/tox.ini b/tox.ini
index 079ad91f3..f20b891c2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
-envlist = py{38}-django40
-          py38-django40
+envlist = py{311}-django50
+          py311-django50
 
 [testenv]
 setenv =
@@ -8,6 +8,6 @@ setenv =
 deps =
     -rrequirements/requirements-testing.txt
     coverage
-    django40: Django>=4.0,<4.1
+    django50: Django>=5.0,<4.5
 commands = ./runtests.py {posargs}
 allowlist_externals = *