diff --git a/samples/CpsExtension/CpsExtension.Vsix/CustomDebugger.cs b/samples/CpsExtension/CpsExtension.Vsix/CustomDebugger.cs
index a7dfb1c..f90f8a9 100644
--- a/samples/CpsExtension/CpsExtension.Vsix/CustomDebugger.cs
+++ b/samples/CpsExtension/CpsExtension.Vsix/CustomDebugger.cs
@@ -2,7 +2,7 @@
 {
     using System;
     using System.Collections.Generic;
-    using System.Composition;
+    using System.ComponentModel.Composition;
     using System.Threading.Tasks;
     using Microsoft.VisualStudio.ProjectSystem;
     using Microsoft.VisualStudio.ProjectSystem.Debug;
diff --git a/samples/CpsExtension/CpsExtension.Vsix/Rules/ProjectProperties.cs b/samples/CpsExtension/CpsExtension.Vsix/Rules/ProjectProperties.cs
index 4131b6a..0c25858 100644
--- a/samples/CpsExtension/CpsExtension.Vsix/Rules/ProjectProperties.cs
+++ b/samples/CpsExtension/CpsExtension.Vsix/Rules/ProjectProperties.cs
@@ -1,6 +1,6 @@
 namespace CpsExtension.Rules
 {
-    using System.Composition;
+    using System.ComponentModel.Composition;
     using Microsoft.VisualStudio.ProjectSystem;
     using Microsoft.VisualStudio.ProjectSystem.Properties;