diff --git a/2015/webcamp-aspnetnow/OWIN/OwinHostSample/packages.config b/2015/webcamp-aspnetnow/OWIN/OwinHostSample/packages.config
index 721fdf56..da48fcf8 100644
--- a/2015/webcamp-aspnetnow/OWIN/OwinHostSample/packages.config
+++ b/2015/webcamp-aspnetnow/OWIN/OwinHostSample/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.Owin" version="3.0.0-rc2" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Diagnostics" version="3.0.0-rc2" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="Owin.Extensions" version="0.8.5" targetFramework="net45" />