diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/ConcurrentWorkflowBuilder.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/ConcurrentWorkflowBuilder.cs
index feb31ddd9f..65d145e1b9 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows/ConcurrentWorkflowBuilder.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows/ConcurrentWorkflowBuilder.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft. All rights reserved.
+// Copyright (c) Microsoft. All rights reserved.
 
 using System;
 using System.Collections.Generic;
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/SequentialWorkflowBuilder.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/SequentialWorkflowBuilder.cs
index cfe1d1e1d4..01b2a047f8 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows/SequentialWorkflowBuilder.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows/SequentialWorkflowBuilder.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft. All rights reserved.
+// Copyright (c) Microsoft. All rights reserved.
 
 using System;
 using System.Collections.Generic;