diff --git a/core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php b/core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php
index de67c43..77c045a 100644
--- a/core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php
+++ b/core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\Tests\Core\Form\EventSubscriber;
 
-use Drupal\Core\Ajax\AjaxResponse;
 use Drupal\Core\Form\EventSubscriber\FormAjaxSubscriber;
 use Drupal\Core\Form\FormAjaxException;
 use Drupal\Core\Form\FormBuilderInterface;