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
diff --git a/composer.json b/composer.json
index 769aa37e..3278feeb 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
   "require": {
     "php": "^7.2 || ^8.0",
     "composer-plugin-api": "^2.0.0",
-    "ergebnis/json-normalizer": "^1.0.0",
+    "ergebnis/json-normalizer": "^1.0.1",
     "ergebnis/json-printer": "^3.1.1",
     "justinrainbow/json-schema": "^5.2.10",
     "localheinz/diff": "^1.1.1"
diff --git a/composer.lock b/composer.lock
index 76e26725..e22334c5 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,20 +4,20 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "936cec1276a906a869bfac7ee86ead1d",
+    "content-hash": "36c09bf747bfac06c436e6a8234ff46f",
     "packages": [
         {
             "name": "ergebnis/json-normalizer",
-            "version": "1.0.0",
+            "version": "1.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/ergebnis/json-normalizer.git",
-                "reference": "f318c642a59eea14233db5f36749aab20aeed203"
+                "reference": "f80e5603ab425b49539951b0a684e138be6ee9a7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/ergebnis/json-normalizer/zipball/f318c642a59eea14233db5f36749aab20aeed203",
-                "reference": "f318c642a59eea14233db5f36749aab20aeed203",
+                "url": "https://api.github.com/repos/ergebnis/json-normalizer/zipball/f80e5603ab425b49539951b0a684e138be6ee9a7",
+                "reference": "f80e5603ab425b49539951b0a684e138be6ee9a7",
                 "shasum": ""
             },
             "require": {
@@ -74,7 +74,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2020-12-29T08:08:15+00:00"
+            "time": "2020-12-30T15:16:58+00:00"
         },
         {
             "name": "ergebnis/json-printer",