diff --git a/.github/workflows/phpunit.yaml b/.github/workflows/phpunit.yaml
index ed8e790..d82acdc 100644
--- a/.github/workflows/phpunit.yaml
+++ b/.github/workflows/phpunit.yaml
@@ -12,5 +12,5 @@ jobs:
       - name: PHPUnit
         uses: php-actions/phpunit@v4
         with:
-          php_extensions: apcu, pdo_mysql
+          php_extensions: apcu pdo_mysql
           configuration:  phpunit.xml.dist
\ No newline at end of file