diff --git a/WebchatBuilder/WebChatBuilderModels/packages.config b/WebchatBuilder/WebChatBuilderModels/packages.config
index 0767563..ac810b6 100644
--- a/WebchatBuilder/WebChatBuilderModels/packages.config
+++ b/WebchatBuilder/WebChatBuilderModels/packages.config
@@ -5,7 +5,7 @@
   <package id="Microsoft.AspNet.Identity.Core" version="2.1.0" targetFramework="net45" />
   <package id="Microsoft.AspNet.Identity.EntityFramework" version="2.1.0" targetFramework="net45" />
   <package id="Microsoft.AspNet.Identity.Owin" version="2.1.0" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.1.1" 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" />
   <package id="Microsoft.Owin.Security.OAuth" version="3.0.0" targetFramework="net45" />