diff --git a/.github/workflows/coding-standards.yml b/.github/workflows/coding-standards.yml
index 82843af..ace2e77 100644
--- a/.github/workflows/coding-standards.yml
+++ b/.github/workflows/coding-standards.yml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2
@@ -31,4 +31,4 @@ jobs:
         uses: ramsey/composer-install@v3
 
       - name: Run PHP CS Fixer
-        run: 'PHP_CS_FIXER_IGNORE_ENV=1 vendor/bin/php-cs-fixer fix --dry-run --format=checkstyle | cs2pr'
+        run: 'vendor/bin/php-cs-fixer fix --dry-run --format=checkstyle | cs2pr'
diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index e7e2120..f342505 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -16,10 +16,11 @@ jobs:
         php-version:
           - '8.3'
           - '8.4'
+          - '8.5'
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install PHP with pcov
         uses: shivammathur/setup-php@v2
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 411a38e..c48a7e7 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2
diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
index 327653e..b235030 100644
--- a/.php-cs-fixer.dist.php
+++ b/.php-cs-fixer.dist.php
@@ -8,6 +8,8 @@
 ;
 
 return (new PhpCsFixer\Config())
+    ->setParallelConfig(PhpCsFixer\Runner\Parallel\ParallelConfigFactory::detect())
+    ->setUnsupportedPhpVersionAllowed(true)
     ->setRiskyAllowed(true)
     ->setRules([
         '@Symfony' => true,
diff --git a/composer.json b/composer.json
index 9620ed0..cb906f6 100644
--- a/composer.json
+++ b/composer.json
@@ -27,11 +27,11 @@
         "microsoft/microsoft-graph": "^1.0"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^3.69.0",
-        "phpstan/phpstan-deprecation-rules": "^2.0.1",
-        "phpstan/phpstan": "^2.1.5",
-        "phpunit/phpunit": "^12.0.3",
-        "symfony/var-dumper": "^7.2"
+        "friendsofphp/php-cs-fixer": "^3.86.0",
+        "phpstan/phpstan-deprecation-rules": "^2.0.3",
+        "phpstan/phpstan": "^2.1.22",
+        "phpunit/phpunit": "^12.3.7",
+        "symfony/var-dumper": "^7.3 || ^8.0"
     },
     "scripts": {
         "ci": [
@@ -39,8 +39,8 @@
             "@phpstan",
             "vendor/bin/phpunit --colors=auto"
         ],
-        "cs:dry": "PHP_CS_FIXER_IGNORE_ENV=1 vendor/bin/php-cs-fixer fix --diff --dry-run --no-interaction --ansi",
-        "cs:fix": "PHP_CS_FIXER_IGNORE_ENV=1 vendor/bin/php-cs-fixer fix --ansi",
+        "cs:dry": "vendor/bin/php-cs-fixer fix --diff --dry-run --no-interaction --ansi",
+        "cs:fix": "vendor/bin/php-cs-fixer fix --ansi",
         "phpstan": "vendor/bin/phpstan analyse --ansi"
     },
     "autoload": {