diff -u b/jsonapi.services.yml b/jsonapi.services.yml
--- b/jsonapi.services.yml
+++ b/jsonapi.services.yml
@@ -35,11 +35,13 @@
     class: Drupal\jsonapi\Normalizer\UnprocessableHttpEntityExceptionNormalizer
     arguments: ['@current_user']
     tags:
+      # This must have a higher priority than the 'serializer.normalizer.http_exception.jsonapi' to take effect.
       - { name: jsonapi_normalizer_do_not_use_removal_imminent, priority: 1 }
   serializer.normalizer.entity_access_exception.jsonapi:
     class: Drupal\jsonapi\Normalizer\EntityAccessDeniedHttpExceptionNormalizer
     arguments: ['@current_user']
     tags:
+      # This must have a higher priority than the 'serializer.normalizer.http_exception.jsonapi' to take effect.
       - { name: jsonapi_normalizer_do_not_use_removal_imminent, priority: 1 }
   serializer.normalizer.entity_reference_item.jsonapi:
     class: Drupal\jsonapi\Normalizer\RelationshipItemNormalizer
@@ -73,11 +75,12 @@
     class: Drupal\jsonapi\Normalizer\JsonApiDocumentTopLevelNormalizer
     arguments: ['@jsonapi.link_manager', '@jsonapi.current_context', '@entity_type.manager', '@jsonapi.resource_type.repository', '@jsonapi.field_resolver']
     tags:
-      - { name: jsonapi_normalizer_do_not_use_removal_imminent, priority: 1 }
+      - { name: jsonapi_normalizer_do_not_use_removal_imminent }
   serializer.normalizer.entity_reference_field.jsonapi:
     class: Drupal\jsonapi\Normalizer\EntityReferenceFieldNormalizer
     arguments: ['@jsonapi.link_manager', '@entity_field.manager', '@plugin.manager.field.field_type', '@jsonapi.resource_type.repository', '@entity.repository']
     tags:
+      # This must have a higher priority than the 'serializer.normalizer.field.jsonapi' to take effect.
       - { name: jsonapi_normalizer_do_not_use_removal_imminent, priority: 1 }
   serializer.encoder.jsonapi:
     class: Drupal\jsonapi\Encoder\JsonEncoder