diff --git a/CHANGELOG.md b/CHANGELOG.md
index 984915d9..445c81be 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ and this library adheres to Rust's notion of
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 The most recent changes are listed first.
 
-## [Unreleased]
+## [0.5.4] - 2026-08-27
 
 ### Changed