diff --git a/src/Models/Cart.php b/src/Models/Cart.php
index ced7de7b..f1e7783b 100644
--- a/src/Models/Cart.php
+++ b/src/Models/Cart.php
@@ -155,7 +155,9 @@ public function toOrder(): Order
             $this->order()->associate($this->order)->save();
         }
 
+        $this->order->items()->delete();
         $this->order->items()->createMany($this->items->toArray());
+
         $this->order->address->fill($this->address->toArray())->save();
         $this->order->shipping->fill($this->shipping->toArray())->save();
         $this->order->shipping->address->fill($this->shipping->address->toArray())->save();
diff --git a/src/Models/Item.php b/src/Models/Item.php
index 10bdc937..31d548e6 100644
--- a/src/Models/Item.php
+++ b/src/Models/Item.php
@@ -61,6 +61,8 @@ class Item extends Model implements Contract
      * @var array<string>
      */
     protected $fillable = [
+        'buyable_id',
+        'buyable_type',
         'name',
         'price',
         'properties',