diff --git a/VirtoCommerce.Storefront/Domain/Cart/Demo/DemoCartBuilder.cs b/VirtoCommerce.Storefront/Domain/Cart/Demo/DemoCartBuilder.cs
index fe53f789..28724616 100644
--- a/VirtoCommerce.Storefront/Domain/Cart/Demo/DemoCartBuilder.cs
+++ b/VirtoCommerce.Storefront/Domain/Cart/Demo/DemoCartBuilder.cs
@@ -118,7 +118,7 @@ public override Task ClearAsync()
             EnsureCartExists();
             Cart.ConfiguredGroups.Clear();
             Cart.Items.Clear();
-            return Task.FromResult((object)null);
+            return Task.CompletedTask;
         }
 
         protected override async Task AddLineItemAsync(LineItem lineItem)