diff --git a/src/Roadkill.Tests/packages.config b/src/Roadkill.Tests/packages.config
index 786bc8a30..b4c6438a6 100644
--- a/src/Roadkill.Tests/packages.config
+++ b/src/Roadkill.Tests/packages.config
@@ -12,7 +12,7 @@
   <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net451" />
   <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net451" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net451" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net451" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net451" />
   <package id="Microsoft.Owin.Hosting" version="2.0.2" targetFramework="net451" />
   <package id="Microsoft.Web.Administration" version="7.0.0.0" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />