diff --git a/WebApplication1/packages.config b/WebApplication1/packages.config
index 0a87980..016012e 100644
--- a/WebApplication1/packages.config
+++ b/WebApplication1/packages.config
@@ -17,7 +17,7 @@
   <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.2" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.2" targetFramework="net45" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.2" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.0.0" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Security" version="3.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.0.0" targetFramework="net45" />