diff --git a/.github/workflows/code_style.yml b/.github/workflows/code_style.yml
index f405d2a..97d9956 100644
--- a/.github/workflows/code_style.yml
+++ b/.github/workflows/code_style.yml
@@ -11,7 +11,7 @@ jobs:
     continue-on-error: true
     strategy:
       matrix:
-        php: [ '8.3' ]
+        php: [ '8.3', '8.4', '8.5' ]
     name: PHP ${{ matrix.php }}
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index 14667d8..ef7ce46 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [ '8.3', '8.4' ]
+        php: [ '8.3', '8.4', '8.5' ]
     name: PHP ${{ matrix.php }}
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/static_analysis.yml b/.github/workflows/static_analysis.yml
index 56a2c18..dbe6b69 100644
--- a/.github/workflows/static_analysis.yml
+++ b/.github/workflows/static_analysis.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [ '8.3', '8.4' ]
+        php: [ '8.3', '8.4', '8.5' ]
     name: PHP ${{ matrix.php }}
     steps:
       - uses: actions/checkout@v4
diff --git a/composer.json b/composer.json
index e31ba7c..80f695c 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
 		}
 	],
 	"require": {
-		"php": ">=8.3 <8.5",
+		"php": ">=8.3 <8.6",
 		"psr/http-message": "^2.0",
 		"php-http/client-implementation": "^1.0",
 		"php-http/httplug": "^2.4",