diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5243003..07a2d54 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/) and this project adheres to [Semantic Versioning](https://semver.org/).
 
+## [1.2.1] - 2021-06-29
+### Changed
+* Default `ISitemapBuilder` implementations are public to improve extensibility
+* Default configuration is registered once per application lifecycle
+* `ISitemapBuilder` is initialised only when requested and within an `UmbracoContext`
+
 ## [1.2.0] - 2021-06-24
 ### Added
 * Alternate (culture variant) URLs appear in sitemap with `hreflang`
@@ -42,6 +48,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/) and this
 * Initial release of Friendly Sitemap for Umbraco 8.1
 
 [Unreleased]: https://github.com/callumbwhyte/friendly-sitemap/compare/release-1.2.1...HEAD
+[1.2.1]: https://github.com/callumbwhyte/friendly-sitemap/compare/release-1.2.0...release-1.2.1
 [1.2.0]: https://github.com/callumbwhyte/friendly-sitemap/compare/release-1.1.0...release-1.2.0
 [1.1.1]: https://github.com/callumbwhyte/friendly-sitemap/compare/release-1.1.0...release-1.1.1
 [1.1.0]: https://github.com/callumbwhyte/friendly-sitemap/compare/release-1.0.0...release-1.1.0