diff --git a/src/Datagrid/ProxyQuery.php b/src/Datagrid/ProxyQuery.php
index a44f197f4..f23f48ea1 100644
--- a/src/Datagrid/ProxyQuery.php
+++ b/src/Datagrid/ProxyQuery.php
@@ -22,6 +22,8 @@
 /**
  * This class try to unify the query usage with Doctrine.
  *
+ * @final since sonata-project/doctrine-orm-admin-bundle 3.x
+ *
  * @method Query\Expr    expr()
  * @method QueryBuilder  setCacheable($cacheable)
  * @method bool          isCacheable()
diff --git a/src/Exporter/DataSource.php b/src/Exporter/DataSource.php
index 27399cce7..73a46a843 100644
--- a/src/Exporter/DataSource.php
+++ b/src/Exporter/DataSource.php
@@ -20,6 +20,9 @@
 use Sonata\Exporter\Source\DoctrineORMQuerySourceIterator;
 use Sonata\Exporter\Source\SourceIteratorInterface;
 
+/**
+ * @final since sonata-project/doctrine-orm-admin-bundle 3.x
+ */
 class DataSource implements DataSourceInterface
 {
     public function createIterator(ProxyQueryInterface $query, array $fields): SourceIteratorInterface