diff --git a/WebPortal/Tenant.Mvc/packages.config b/WebPortal/Tenant.Mvc/packages.config
index 6ca0110..f024884 100644
--- a/WebPortal/Tenant.Mvc/packages.config
+++ b/WebPortal/Tenant.Mvc/packages.config
@@ -35,7 +35,7 @@
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.0" targetFramework="net45" />
   <package id="Microsoft.Net.Compilers" version="1.0.0" targetFramework="net45" />
   <package id="Microsoft.Net.Http" version="2.2.22" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="2.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.0.1" targetFramework="net45" />