diff --git a/samples/Geta.404Handler.SandboxApp/packages.config b/samples/Geta.404Handler.SandboxApp/packages.config
index 84a4446..11ac72f 100644
--- a/samples/Geta.404Handler.SandboxApp/packages.config
+++ b/samples/Geta.404Handler.SandboxApp/packages.config
@@ -25,7 +25,7 @@
   <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net472" />
   <package id="Microsoft.AspNet.Web.Optimization" version="1.1.3" targetFramework="net472" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net472" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net472" />
+  <package id="Microsoft.Owin" version="4.2.2" targetFramework="net472" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net472" />
   <package id="Microsoft.Owin.Security" version="3.0.0" targetFramework="net472" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.0.0" targetFramework="net472" />