diff --git a/.circleci/config.yml b/.circleci/config.yml
index 374299b..d469640 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -39,7 +39,7 @@ job-references:
             composer install
             rm -rf $WP_TESTS_DIR $WP_CORE_DIR
             bash bin/install-wp-tests.sh wordpress_test root '' 127.0.0.1 latest
-            phpunit
+            vendor/bin/phpunit
 
 jobs:
   php74-build: