diff --git a/src/NLog.SignalR.Sample.Web/packages.config b/src/NLog.SignalR.Sample.Web/packages.config
index d97d5b3..484693e 100644
--- a/src/NLog.SignalR.Sample.Web/packages.config
+++ b/src/NLog.SignalR.Sample.Web/packages.config
@@ -21,7 +21,7 @@
   <package id="Microsoft.jQuery.Unobtrusive.Ajax" version="2.0.30506.0" targetFramework="net45" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="2.0.30116.0" targetFramework="net45" />
   <package id="Microsoft.Net.Http" version="2.0.20710.0" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="2.1.0" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="2.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Security" version="2.1.0" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />