diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 4920aa7c..48e60ad0 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -17,5 +17,5 @@ jobs:
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-versions }}
-      - run: composer global require phpunit/phpunit ^8
-      - run: phpunit --configuration=phpunit.xml --include-path=lib/
+      - run: composer install
+      - run: composer test