diff --git a/Chapter06/TodoListWebApp/packages.config b/Chapter06/TodoListWebApp/packages.config
index 484a340..1e6d026 100644
--- a/Chapter06/TodoListWebApp/packages.config
+++ b/Chapter06/TodoListWebApp/packages.config
@@ -9,7 +9,7 @@
   <package id="Microsoft.AspNet.WebPages" version="3.2.2" targetFramework="net45" />
   <package id="Microsoft.IdentityModel.Clients.ActiveDirectory" version="3.9.304210845" targetFramework="net45" />
   <package id="Microsoft.IdentityModel.Protocol.Extensions" version="1.0.0" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.0.0" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.0" 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" />