diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8f9b6d7..2ba7db43 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 ## [**Next release**](https://galaxy.ansible.com/cloudalchemy/prometheus)
 
+## [4.0.0] - 2021-05-13
+**Merged pull requests:**
+
+- Merge pull request [#357](https://github.com/cloudalchemy/ansible-prometheus/issues/357) from cloudalchemy/autoupdate
+
+
 ## [3.0.0] - 2021-04-16
 **Merged pull requests:**
 
@@ -850,7 +856,8 @@
 
 ## 0.0.1 - 2017-05-02
 
-[Unreleased]: https://github.com/cloudalchemy/ansible-prometheus/compare/3.0.0...HEAD
+[Unreleased]: https://github.com/cloudalchemy/ansible-prometheus/compare/4.0.0...HEAD
+[4.0.0]: https://github.com/cloudalchemy/ansible-prometheus/compare/3.0.0...4.0.0
 [3.0.0]: https://github.com/cloudalchemy/ansible-prometheus/compare/2.17.0...3.0.0
 [2.17.0]: https://github.com/cloudalchemy/ansible-prometheus/compare/2.16.3...2.17.0
 [2.16.3]: https://github.com/cloudalchemy/ansible-prometheus/compare/2.16.2...2.16.3