diff --git a/source/Host/packages.config b/source/Host/packages.config
index 681c5bdb3..1b1775086 100644
--- a/source/Host/packages.config
+++ b/source/Host/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.IdentityModel.Protocol.Extensions" version="1.0.2.206221351" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.0.1" targetFramework="net45" />