diff --git a/CHANGELOG.md b/CHANGELOG.md
index c270a8ad..3c43aace 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 For a full diff see [`2.2.0...main`][2.2.0...main].
 
+### Changed
+
+- Allowed installation on PHP 8.4 ([#862]), by [@localheinz]
+
 ## [`2.2.0`][2.2.0]
 
 For a full diff see [`2.1.0...2.2.0`][2.1.0...2.2.0].
@@ -501,6 +505,7 @@ For a full diff see [`362c7ea...0.1.0`][362c7ea...0.1.0].
 [#543]: https://github.com/ergebnis/phpstan-rules/pull/543
 [#567]: https://github.com/ergebnis/phpstan-rules/pull/567
 [#735]: https://github.com/ergebnis/phpstan-rules/pull/735
+[#862]: https://github.com/ergebnis/phpstan-rules/pull/862
 
 [@enumag]: https://github.com/enumag
 [@ergebnis]: https://github.com/ergebnis
diff --git a/composer.json b/composer.json
index 1a64f94d..3a7d5cdc 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
     "security": "https://github.com/ergebnis/phpstan-rules/blob/main/.github/SECURITY.md"
   },
   "require": {
-    "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
+    "php": "~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0",
     "ext-mbstring": "*",
     "nikic/php-parser": "^4.2.3 || ^5.0.0",
     "phpstan/phpstan": "^1.10.21"
diff --git a/composer.lock b/composer.lock
index b43fc90c..4b0f273f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "0cb6ab59996231ecd84549d68894c030",
+    "content-hash": "7d94a8cda22ebbe49d10794e43ec6800",
     "packages": [
         {
             "name": "nikic/php-parser",
@@ -7404,14 +7404,14 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": [],
+    "stability-flags": {},
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
+        "php": "~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0",
         "ext-mbstring": "*"
     },
-    "platform-dev": [],
+    "platform-dev": {},
     "platform-overrides": {
         "php": "8.1.26"
     },