diff --git a/core/lib/Drupal/Core/Cache/DatabaseBackend.php b/core/lib/Drupal/Core/Cache/DatabaseBackend.php
index c5d6a0dc25..1c32e3d203 100644
--- a/core/lib/Drupal/Core/Cache/DatabaseBackend.php
+++ b/core/lib/Drupal/Core/Cache/DatabaseBackend.php
@@ -93,8 +93,9 @@ public function __construct(Connection $connection, CacheTagsChecksumInterface $
     $this->maxRows = $max_rows === NULL ? static::DEFAULT_MAX_ROWS : $max_rows;
     if (!$serializer) {
       @trigger_error('Calling DatabaseBackend::__construct() without the $serializer argument is deprecated in drupal:8.8.0. The $serializer argument will be required in drupal:9.0.0. See https://www.drupal.org/node/3014688', E_USER_DEPRECATED);
+      $serializer = \Drupal::service('serialization.phpserialize');
     }
-    $this->serializer = \Drupal::service('serialization.phpserialize');
+    $this->serializer = $serializer;
   }
 
   /**
diff --git a/core/lib/Drupal/Core/Cache/DatabaseBackendFactory.php b/core/lib/Drupal/Core/Cache/DatabaseBackendFactory.php
index 371227c8bc..08b47211b9 100644
--- a/core/lib/Drupal/Core/Cache/DatabaseBackendFactory.php
+++ b/core/lib/Drupal/Core/Cache/DatabaseBackendFactory.php
@@ -56,8 +56,9 @@ public function __construct(Connection $connection, CacheTagsChecksumInterface $
     $this->settings = $settings ?: Settings::getInstance();
     if (!$serializer) {
       @trigger_error('Calling DatabaseBackendFactory::__construct() without the $serializer argument is deprecated in drupal:8.8.0. The $serializer argument will be required in drupal:9.0.0. See https://www.drupal.org/node/3014688', E_USER_DEPRECATED);
+      $serializer = \Drupal::service('serialization.phpserialize');
     }
-    $this->serializer = \Drupal::service('serialization.phpserialize');
+    $this->serializer = $serializer;
   }
 
   /**