diff --git a/Src/Hypermedia.Sample.WebApi/packages.config b/Src/Hypermedia.Sample.WebApi/packages.config
index ef30cff..d4db9df 100644
--- a/Src/Hypermedia.Sample.WebApi/packages.config
+++ b/Src/Hypermedia.Sample.WebApi/packages.config
@@ -13,7 +13,7 @@
   <package id="Microsoft.AspNet.WebApi.Owin" version="5.2.3" targetFramework="net462" />
   <package id="Microsoft.AspNet.WebApi.Tracing" version="5.2.3" targetFramework="net462" />
   <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net452" />
-  <package id="Microsoft.Owin" version="3.1.0" targetFramework="net462" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net462" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net462" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net452" />
   <package id="Newtonsoft.Json" version="6.0.4" targetFramework="net452" />