diff --git a/core/modules/file/tests/src/Functional/FileListingTest.php b/core/modules/file/tests/src/Functional/FileListingTest.php
index a263462e1143a4518b4f5468d6085bef95efa625..87be7ef608ccda192196cf55f8c2d22a3f625910 100644
--- a/core/modules/file/tests/src/Functional/FileListingTest.php
+++ b/core/modules/file/tests/src/Functional/FileListingTest.php
@@ -23,7 +23,7 @@ class FileListingTest extends FileFieldTestBase {
   /**
    * {@inheritdoc}
    */
-  protected $defaultTheme = 'stark';
+  protected $defaultTheme = 'classy';
 
   /**
    * An authenticated user.