diff --git a/BBBZ/packages.config b/BBBZ/packages.config
index 48209ed..850549c 100644
--- a/BBBZ/packages.config
+++ b/BBBZ/packages.config
@@ -17,7 +17,7 @@
   <package id="Microsoft.AspNet.WebApi.WebHost" version="5.0.0" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebPages" version="3.0.0" targetFramework="net45" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.0.0" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="2.0.0" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="2.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Security" version="2.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Security.Cookies" version="2.0.0" targetFramework="net45" />