diff --git a/SampleWebMVCOAuth2/packages.config b/SampleWebMVCOAuth2/packages.config
index ee244836..2aa3eaa9 100644
--- a/SampleWebMVCOAuth2/packages.config
+++ b/SampleWebMVCOAuth2/packages.config
@@ -18,7 +18,7 @@
   <package id="Microsoft.Bcl.Build" version="1.0.14" targetFramework="net451" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.2" targetFramework="net45" />
   <package id="Microsoft.Net.Http" version="2.2.22" targetFramework="net451" />
-  <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" />