diff --git a/mvc/demos/PerfSurf/packages.config b/mvc/demos/PerfSurf/packages.config
index cbdd194..7610703 100644
--- a/mvc/demos/PerfSurf/packages.config
+++ b/mvc/demos/PerfSurf/packages.config
@@ -23,7 +23,7 @@
   <package id="SignalR.Js" version="0.4.0.1" />
   <package id="SignalR.Server" version="0.4.0.0" />
   <package id="System.Json" version="4.0.20126.16343" />
-  <package id="System.Net.Http" version="2.0.20126.16343" />
+  <package id="System.Net.Http" version="4.3.4" />
   <package id="System.Net.Http.Formatting" version="4.0.20126.16343" />
   <package id="System.Web.Http.Common" version="4.0.20126.16343" />
   <package id="System.Web.Providers" version="1.1" />