diff -u b/core/lib/Drupal/Component/Serialization/ObjectAwareSerializationInterface.php b/core/lib/Drupal/Component/Serialization/ObjectAwareSerializationInterface.php
--- b/core/lib/Drupal/Component/Serialization/ObjectAwareSerializationInterface.php
+++ b/core/lib/Drupal/Component/Serialization/ObjectAwareSerializationInterface.php
@@ -1,6 +1,7 @@
 <?php
 
 namespace Drupal\Component\Serialization;
+// cspell:ignore serializers igbinary
 
 /**
  * Ensures that a serializer is usable for serializing PHP objects.