diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6cafc451d..e914a0c7b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Changelog
 
 ## [Unreleased]
+
+## [5.4.0] - 2023-05-27
 ### Added
 - Added `getSupportedSRIDsWithHelp()` as a version of `getSupportedSRIDs()` that returns at runtime the inline help
   available within the source code
@@ -266,8 +268,9 @@ Initial release of this fork (based off of v2.3 of original)
  - Eastings and northings are rounded to 1m, and lat/long to 5dp (approx 1m) to avoid any misconceptions that precision is the same thing as accuracy.
  - When calculating surface distances, a more accurate mean radius is now used rather than that derived from historical definitions of a nautical mile
 
-[Unreleased]: https://github.com/dvdoug/PHPCoord/compare/v5.3.1...HEAD
+[Unreleased]: https://github.com/dvdoug/PHPCoord/compare/v5.4.0...HEAD
 
+[5.4.0]: https://github.com/dvdoug/PHPCoord/compare/v5.3.1...v5.4.0
 [5.3.1]: https://github.com/dvdoug/PHPCoord/compare/v5.3.0...v5.3.1
 [5.3.0]: https://github.com/dvdoug/PHPCoord/compare/v5.2.0...v5.3.0
 [5.2.0]: https://github.com/dvdoug/PHPCoord/compare/v5.1.0...v5.2.0