diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd05c792..ac2fc67d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,11 +4,16 @@ 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).
 
-[unreleased]
+## [unreleased]
+
+### Added
 - Updated CI to also test on PHP 8.3 #407
 - Updated readme PHP requirement to PHP 7.0+ #407
 - Added dependabot for GitHub Actions #407
 
+### Fixed
+- Return types are too strict. #412
+
 ## [1.0.0] - 2023-12-13
 
 ### Added