diff --git a/core/tests/Drupal/Tests/Component/Attribute/AttributeTest.php b/core/tests/Drupal/Tests/Component/Attribute/AttributeTest.php
index 8ae35af3f2..b2ccd8a736 100644
--- a/core/tests/Drupal/Tests/Component/Attribute/AttributeTest.php
+++ b/core/tests/Drupal/Tests/Component/Attribute/AttributeTest.php
@@ -12,13 +12,13 @@
 use Drupal\Component\Render\MarkupInterface;
 use Drupal\Component\Render\MarkupTrait;
 use Drupal\Component\Utility\Html;
-use Drupal\Tests\UnitTestCase;
+use PHPUnit\Framework\TestCase;
 
 /**
  * @coversDefaultClass \Drupal\Component\Attribute\Attribute
  * @group Attribute
  */
-class AttributeTest extends UnitTestCase {
+class AttributeTest extends TestCase {
 
   /**
    * Tests the constructor of the attribute class.