diff --git a/CHANGELOG.md b/CHANGELOG.md
index a82e519..8830112 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 [`2.4.0...main`][2.4.0...main].
 
+### Changed
+
+- Added support for PHP 8.5 ([#250]), by [@holtkamp]
+
 ## [`2.4.0`][2.4.0]
 
 For a full diff see [`2.3.0...2.4.0`][2.3.0...2.4.0].
diff --git a/composer.json b/composer.json
index bb80990..bb63c99 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
   ],
   "homepage": "https://github.com/teapot-php/status-code",
   "require": {
-    "php": "~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0"
+    "php": "~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0 || ~8.5.0"
   },
   "require-dev": {
     "ergebnis/composer-normalize": "^2.47.0",
diff --git a/composer.lock b/composer.lock
index 9cdf8a3..fe5abe1 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": "8bbb3adc581dd7b005095eda514c1640",
+    "content-hash": "daafcb6ba66caf9e702b410a8ecf9895",
     "packages": [],
     "packages-dev": [
         {
@@ -3722,11 +3722,11 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0"
+        "php": "~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0 || ~8.5.0"
     },
     "platform-dev": {},
     "platform-overrides": {
         "php": "7.4.33"
     },
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.9.0"
 }