diff --git a/core/modules/update/src/Tests/UpdateTestBase.php b/core/modules/update/src/Tests/UpdateTestBase.php
index e243d0b..7f576c9 100644
--- a/core/modules/update/src/Tests/UpdateTestBase.php
+++ b/core/modules/update/src/Tests/UpdateTestBase.php
@@ -2,8 +2,6 @@
 
 namespace Drupal\update\Tests;
 
-@trigger_error(__NAMESPACE__ . '\UpdateTestBase is deprecated in Drupal 8.4.0 and will be removed before Drupal 9.0.0. Instead, use \Drupal\Tests\update\Functional\UpdateTestBase', E_USER_DEPRECATED);
-
 use Drupal\Core\DrupalKernel;
 use Drupal\Core\Url;
 use Drupal\simpletest\WebTestBase;
@@ -24,9 +22,6 @@
  * (via the 'update_test_xml_map' variable), and then performs a series of
  * assertions that the report matches our expectations given the specific
  * initial state and availability scenario.
- *
- * @deprecated Scheduled for removal in Drupal 9.0.0.
- *   Use \Drupal\Tests\update\Functional\UpdateTestBase instead.
  */
 abstract class UpdateTestBase extends WebTestBase {