diff --git a/SecuritySystem/SecuritySystemContracts/StoragesContracts/IShopStorage.cs b/SecuritySystem/SecuritySystemContracts/StoragesContracts/IShopStorage.cs
index e7e624a..112a8ff 100644
--- a/SecuritySystem/SecuritySystemContracts/StoragesContracts/IShopStorage.cs
+++ b/SecuritySystem/SecuritySystemContracts/StoragesContracts/IShopStorage.cs
@@ -13,5 +13,6 @@ namespace SecuritySystemContracts.StoragesContracts
         ShopViewModel? Insert(ShopBindingModel model);
         ShopViewModel? Update(ShopBindingModel model);
         ShopViewModel? Delete(ShopBindingModel model);
+        bool SellSecures(ISecureModel secureModel, int securesCount);
     }
 }