diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c9f69ea3..da38cf4e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -80,4 +80,4 @@ jobs:
       run: make
 
     - name: Run tests with phpunit
-      run: ./run-tests.sh
+      run: php ./vendor/phpunit/phpunit/phpunit