diff --git a/Superscribe.Tests.Owin/packages.config b/Superscribe.Tests.Owin/packages.config
index 923571f..d19a3d0 100644
--- a/Superscribe.Tests.Owin/packages.config
+++ b/Superscribe.Tests.Owin/packages.config
@@ -4,7 +4,7 @@
   <package id="Machine.Fakes.Moq" version="1.8.0" targetFramework="net45" />
   <package id="Machine.Specifications" version="0.5.16" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebApi.Client" version="5.0.0" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="2.0.2" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Hosting" version="2.0.2" targetFramework="net45" />
   <package id="Microsoft.Owin.Testing" version="2.0.2" targetFramework="net45" />
   <package id="Moq" version="4.1.1311.0615" targetFramework="net45" />