diff --git a/samples/HttpSend/Program.cs b/samples/HttpSend/Program.cs
index 904c494..a8a51eb 100644
--- a/samples/HttpSend/Program.cs
+++ b/samples/HttpSend/Program.cs
@@ -6,7 +6,6 @@ namespace HttpSend
 {
     using System;
     using System.ComponentModel.DataAnnotations;
-    using System.Net;
     using System.Net.Http;
     using System.Net.Mime;
     using System.Threading.Tasks;