diff --git a/H3Control.Tests/packages.config b/H3Control.Tests/packages.config
index 9dd191a..79458a2 100644
--- a/H3Control.Tests/packages.config
+++ b/H3Control.Tests/packages.config
@@ -5,7 +5,7 @@
   <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebApi.Owin" version="5.2.3" 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.Diagnostics" version="3.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.HttpListener" version="3.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net45" />