diff --git a/packages.config b/packages.config
index 9f96ebe..0bc7ab4 100644
--- a/packages.config
+++ b/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="Microsoft.AspNet.SignalR.Core" version="2.1.2" targetFramework="net45" />
   <package id="Microsoft.AspNet.SignalR.SelfHost" version="2.1.2" 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.Diagnostics" version="2.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.FileSystems" version="3.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.HttpListener" version="3.0.0" targetFramework="net45" />