diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 68d7f08..b72f284 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -4,13 +4,18 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
-        php: [7.2, 7.3]
+        php: [7.4]
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+        
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
 
       - name: Install dependencies
         run: composer install --prefer-dist --no-interaction --ansi
@@ -19,4 +24,4 @@ jobs:
         run: composer run-script cs
 
       - name: Run tests
-        run: php${{ matrix.php }} ./vendor/bin/phpunit
+        run: php ./vendor/bin/phpunit