diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef58d83..a255444 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,33 @@
 # Changelog
+
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## v4.0.0 - 2022-09-20
+
+### [4.0.0](https://github.com/eduNEXT/eox-theming/compare/v3.1.0...v4.0.0) (2022-09-20)
+
+#### ⚠ BREAKING CHANGES
+
+- remove support version v3.1.0
+- 
+- perf: add compatibility with openedx nutmeg release
+- 
+- ci(circleci): remove ci and update github actions
+- 
+- build: update requirements and tox
+- 
+- docs: add nutmeg info to README file
+- 
+- build: update requirements
+- 
+
+#### Performance Improvements
+
+- eox-theming support for Nutmeg release ([#40](https://github.com/eduNEXT/eox-theming/issues/40)) ([5e094e7](https://github.com/eduNEXT/eox-theming/commit/5e094e7871f04a575580d1be1c7ee32128d87212))
+
 ## [2.0.0] - 2021-11-09
 
 ### Added
diff --git a/eox_theming/__init__.py b/eox_theming/__init__.py
index 517e550..cddd74b 100644
--- a/eox_theming/__init__.py
+++ b/eox_theming/__init__.py
@@ -4,4 +4,4 @@
 
 from __future__ import unicode_literals
 
-__version__ = '3.1.0'
+__version__ = '4.0.0'
diff --git a/setup.cfg b/setup.cfg
index fe22204..c6fe67c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.1.0
+current_version = 4.0.0
 commit = False
 tag = False