diff --git a/core/core.services.yml b/core/core.services.yml
index 3768035310b3962800cad0a5d7cdb73e77ada81a..cfe56accdeb1f556b58cb46890c1632433a8a0fc 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -529,6 +529,8 @@ services:
   lock.persistent:
     class: Drupal\Core\Lock\PersistentDatabaseLockBackend
     arguments: ['@database']
+    tags:
+      - { name: backend_overridable }
   router.request_context:
     class: Drupal\Core\Routing\RequestContext
     tags: