diff --git a/CHANGELOG.md b/CHANGELOG.md
index bffd8f1a..6a52e040 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,15 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## Unreleased
 
-For a full diff see [`2.12.1...main`][2.12.1...main].
+For a full diff see [`2.12.2...main`][2.12.2...main].
+
+## [`2.12.2`][2.12.2]
+
+For a full diff see [`2.12.1...2.12.2`][2.12.1...2.12.2].
+
+### Fixed
+
+* Required `ergebnis/json-normalizer:^1.0.1` which ignores the `preferred-install` hash when sorting configuration hashes by key ([#646]), by [@dependabot]
 
 ## [`2.12.1`][2.12.1]
 
@@ -519,6 +527,7 @@ For a full diff see [`81bc3a8...0.1.0`][81bc3a8...0.1.0].
 [2.11.0]: https://github.com/ergebnis/composer-normalize/releases/tag/2.11.0
 [2.12.0]: https://github.com/ergebnis/composer-normalize/releases/tag/2.12.0
 [2.12.1]: https://github.com/ergebnis/composer-normalize/releases/tag/2.12.1
+[2.12.2]: https://github.com/ergebnis/composer-normalize/releases/tag/2.12.2
 
 [81bc3a8...0.1.0]: https://github.com/ergebnis/composer-normalize/compare/81bc3a8...0.1.0
 [0.1.0...0.2.0]: https://github.com/ergebnis/composer-normalize/compare/0.1.0...0.2.0
@@ -568,7 +577,8 @@ For a full diff see [`81bc3a8...0.1.0`][81bc3a8...0.1.0].
 [2.10.0...2.11.0]: https://github.com/ergebnis/composer-normalize/compare/2.10.0...2.11.0
 [2.11.0...2.12.0]: https://github.com/ergebnis/composer-normalize/compare/2.11.0...2.12.0
 [2.12.0...2.12.1]: https://github.com/ergebnis/composer-normalize/compare/2.12.0...2.12.1
-[2.12.1...main]: https://github.com/ergebnis/composer-normalize/compare/2.12.1...main
+[2.12.1...2.12.2]: https://github.com/ergebnis/composer-normalize/compare/2.12.1...2.12.2
+[2.12.2...main]: https://github.com/ergebnis/composer-normalize/compare/2.12.2...main
 
 [#1]: https://github.com/ergebnis/composer-normalize/pull/1
 [#2]: https://github.com/ergebnis/composer-normalize/pull/2
@@ -642,6 +652,7 @@ For a full diff see [`81bc3a8...0.1.0`][81bc3a8...0.1.0].
 [#640]: https://github.com/ergebnis/composer-normalize/pull/640
 [#641]: https://github.com/ergebnis/composer-normalize/pull/641
 [#643]: https://github.com/ergebnis/composer-normalize/pull/643
+[#646]: https://github.com/ergebnis/composer-normalize/pull/646
 
 [@core23]: https://github.com/core23
 [@dependabot]: https://github.com/dependabot