diff --git a/CHANGELOG.md b/CHANGELOG.md
index bfe3e61..bb72547 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,8 @@ All notable changes to this GitHub action will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [Unreleased]
+
 ## [0.5.0] - 2023-06-29
 
 ### Changed
@@ -38,6 +40,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 First release to Marketplace.
 
+[Unreleased]: https://github.com/zaproxy/action-api-scan/compare/v0.5.0...HEAD
 [0.5.0]: https://github.com/zaproxy/action-full-scan/compare/v0.4.0...v0.5.0
 [0.4.0]: https://github.com/zaproxy/action-full-scan/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/zaproxy/action-full-scan/compare/v0.2.0...v0.3.0