diff --git a/dotnet/samples/Durable/Workflow/ConsoleApps/07_SubWorkflows/Executors.cs b/dotnet/samples/Durable/Workflow/ConsoleApps/07_SubWorkflows/Executors.cs
index 25c7228642..121db7af67 100644
--- a/dotnet/samples/Durable/Workflow/ConsoleApps/07_SubWorkflows/Executors.cs
+++ b/dotnet/samples/Durable/Workflow/ConsoleApps/07_SubWorkflows/Executors.cs
@@ -1,7 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
 using Microsoft.Agents.AI.Workflows;
-using Microsoft.Agents.AI.Workflows.Checkpointing;
 
 namespace SubWorkflows;