diff --git a/src/Models/Product.php b/src/Models/Product.php
index 34308eb..4b3a478 100644
--- a/src/Models/Product.php
+++ b/src/Models/Product.php
@@ -14,5 +14,5 @@
 class Product extends Model
 {
     protected $entity     = 'products';
-    protected $primaryKey = 'id';
+    protected $primaryKey = 'sku';
 }