diff --git a/.github/workflows/phpmd.yml b/.github/workflows/phpmd.yml
index d9baa5c..9efa973 100644
--- a/.github/workflows/phpmd.yml
+++ b/.github/workflows/phpmd.yml
@@ -25,7 +25,7 @@ jobs:
       - name: Setup Environment
         uses: shivammathur/setup-php@v2
         with:
-          php-version: "8.0"
+          php-version: "8.1"
           coverage: none
           tools: phpmd
 
diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index a42088b..795fd42 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -26,7 +26,7 @@ jobs:
         uses: php-actions/composer@v6
         with:
           command: update
-          php_version: "8.0"
+          php_version: "8.1"
 
       - name: Run PHPStan
         uses: php-actions/phpstan@v3