diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7cddcc4..6c8afcb 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -17,9 +17,9 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Install PHP
-        uses: shivammathur/setup-php@2.22.0
+        uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.0'
+          php-version: '8.1'
           extensions: mbstring, intl
           coverage: none
         env:
@@ -28,7 +28,7 @@ jobs:
 
       - name: Get composer cache directory
         id: composer-cache
-        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
 
       - name: Cache composer dependencies
         uses: actions/cache@v3
@@ -56,7 +56,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Install PHP
-        uses: shivammathur/setup-php@2.22.0
+        uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}
           extensions: mbstring, intl, mysql
@@ -67,7 +67,7 @@ jobs:
 
       - name: Get composer cache directory
         id: composer-cache
-        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
 
       - name: Cache composer dependencies
         uses: actions/cache@v3
@@ -80,11 +80,11 @@ jobs:
         run: composer update --no-interaction --no-progress --optimize-autoloader
 
       - name: Run PHPUnit
-        if: matrix.php != '8.0'
+        if: matrix.php != '8.1'
         run: vendor/bin/phpunit
 
       - name: Run Infection with PHPUnit
-        if: matrix.php == '8.0'
+        if: matrix.php == '8.1'
         run: |
           mkdir -p build/logs
           vendor/bin/phpunit --coverage-xml=build/logs/coverage-xml --log-junit=build/logs/junit.xml