diff -u b/core/modules/media/tests/src/Functional/MediaRevisionTest.php b/core/modules/media/tests/src/Functional/MediaRevisionTest.php
--- b/core/modules/media/tests/src/Functional/MediaRevisionTest.php
+++ b/core/modules/media/tests/src/Functional/MediaRevisionTest.php
@@ -85,7 +85,6 @@
     $page = $this->getSession()->getPage();
     $page->fillField('Name', 'Foobar');
     $page->attachFileToField('File', $this->container->get('file_system')->realpath($uri));
-    $this->getSession()->wait(10000);
     $page->pressButton('Save and publish');
     $assert->addressMatches('/^\/media\/[0-9]+$/');
 
@@ -133,7 +132,6 @@
     $page = $this->getSession()->getPage();
     $page->fillField('Name', 'Foobar');
     $page->attachFileToField('Image', \Drupal::root() . '/core/modules/media/tests/fixtures/example_1.jpeg');
-    $this->getSession()->wait(10000);
     $page->pressButton('Save and publish');
     $assert->addressMatches('/^\/media\/[0-9]+$/');