diff --git a/samples-aspnet/Samples.WebForms/packages.config b/samples-aspnet/Samples.WebForms/packages.config
index 8779c9b9907a..b78001caeb43 100644
--- a/samples-aspnet/Samples.WebForms/packages.config
+++ b/samples-aspnet/Samples.WebForms/packages.config
@@ -14,7 +14,7 @@
   <package id="Microsoft.AspNet.Web.Optimization" version="1.1.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.Web.Optimization.WebForms" version="1.1.3" targetFramework="net45" />
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="2.0.0" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.1.0" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Security" version="3.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.1.0" targetFramework="net45" />