diff --git a/src/Document/Product.php b/src/Document/Product.php
index 32576ce..5afacb4 100644
--- a/src/Document/Product.php
+++ b/src/Document/Product.php
@@ -8,7 +8,7 @@
 /**
  * @ElasticSearch\Document(type="product")
  */
-final class Product
+class Product
 {
     /**
      * @var string