diff --git a/Blog.WebUI/packages.config b/Blog.WebUI/packages.config
index 7969c12..34693df 100644
--- a/Blog.WebUI/packages.config
+++ b/Blog.WebUI/packages.config
@@ -13,7 +13,7 @@
   <package id="Microsoft.AspNet.Web.Optimization" version="1.1.3" targetFramework="net451" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.2" targetFramework="net451" />
   <package id="Microsoft.jQuery.Unobtrusive.Ajax" version="3.2.3" targetFramework="net451" />
-  <package id="Microsoft.Owin" version="3.1.0" targetFramework="net451" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net451" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net451" />
   <package id="Microsoft.Owin.Security" version="3.1.0" targetFramework="net451" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.1.0" targetFramework="net451" />