diff --git a/core/tests/Drupal/Tests/Component/PhpStorage/FileStorageReadOnlyTest.php b/core/tests/Drupal/Tests/Component/PhpStorage/FileStorageReadOnlyTest.php
index f19f32f834..e8f5197a56 100644
--- a/core/tests/Drupal/Tests/Component/PhpStorage/FileStorageReadOnlyTest.php
+++ b/core/tests/Drupal/Tests/Component/PhpStorage/FileStorageReadOnlyTest.php
@@ -5,6 +5,7 @@
 use Drupal\Component\PhpStorage\FileStorage;
 use Drupal\Component\PhpStorage\FileReadOnlyStorage;
 use Drupal\Component\Utility\Random;
+use Symfony\Bridge\PhpUnit\ExpectDeprecationTrait;
 
 /**
  * @coversDefaultClass \Drupal\Component\PhpStorage\FileReadOnlyStorage
@@ -14,6 +15,8 @@
  */
 class FileStorageReadOnlyTest extends PhpStorageTestBase {
 
+  use ExpectDeprecationTrait;
+
   /**
    * Standard test settings to pass to storage instances.
    *
diff --git a/core/tests/Drupal/Tests/Component/PhpStorage/FileStorageTest.php b/core/tests/Drupal/Tests/Component/PhpStorage/FileStorageTest.php
index bf3f4c442f..bfad89b69b 100644
--- a/core/tests/Drupal/Tests/Component/PhpStorage/FileStorageTest.php
+++ b/core/tests/Drupal/Tests/Component/PhpStorage/FileStorageTest.php
@@ -6,6 +6,7 @@
 use Drupal\Component\Utility\Random;
 use Drupal\Tests\Traits\PhpUnitWarnings;
 use org\bovigo\vfs\vfsStreamDirectory;
+use Symfony\Bridge\PhpUnit\ExpectDeprecationTrait;
 
 /**
  * @coversDefaultClass \Drupal\Component\PhpStorage\FileStorage
@@ -14,7 +15,7 @@
  */
 class FileStorageTest extends PhpStorageTestBase {
 
-  use PhpUnitWarnings;
+  use PhpUnitWarnings, ExpectDeprecationTrait;
 
   /**
    * Standard test settings to pass to storage instances.