diff --git a/.github/workflows/code-style.yml b/.github/workflows/code-style.yml
index c3a1b19..684159f 100644
--- a/.github/workflows/code-style.yml
+++ b/.github/workflows/code-style.yml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['8.3']
+        php: ['8.4']
 
     name: "Check code style | PHP ${{ matrix.php }}"
 
diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index cacda84..3720932 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         operating-system: ['ubuntu-latest']
-        php: ['8.3']
+        php: ['8.4']
 
     steps:
       - name: Checkout
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1446d20..a39c776 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased](https://github.com/Art4/json-api-client/compare/1.3.0...v1.x)
 
+### Added
+
+- Add support for PHP 8.5
+
 ## [1.3.0 - 2024-10-11](https://github.com/Art4/json-api-client/compare/1.2.0...1.3.0)
 
 ### Added
diff --git a/composer.json b/composer.json
index dd35875..25c6aa2 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         }
     ],
     "require": {
-        "php": "~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0"
+        "php": "~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0 || ~8.5.0"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.64",