diff --git a/OwinSelfhostSample/packages.config b/OwinSelfhostSample/packages.config
index c815c55..c13e807 100644
--- a/OwinSelfhostSample/packages.config
+++ b/OwinSelfhostSample/packages.config
@@ -4,7 +4,7 @@
   <package id="Microsoft.AspNet.WebApi.Core" version="5.2.6" targetFramework="net461" />
   <package id="Microsoft.AspNet.WebApi.Owin" version="5.2.6" targetFramework="net461" />
   <package id="Microsoft.AspNet.WebApi.OwinSelfHost" version="5.2.6" targetFramework="net461" />
-  <package id="Microsoft.Owin" version="2.0.2" targetFramework="net461" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net461" />
   <package id="Microsoft.Owin.Host.HttpListener" version="2.0.2" targetFramework="net461" />
   <package id="Microsoft.Owin.Hosting" version="2.0.2" targetFramework="net461" />
   <package id="Newtonsoft.Json" version="6.0.4" targetFramework="net461" />