diff --git a/Brighter/paramore.brighter.commandprocessor.viewer.tests/packages.config b/Brighter/paramore.brighter.commandprocessor.viewer.tests/packages.config
index d5549e930f..95161539c1 100644
--- a/Brighter/paramore.brighter.commandprocessor.viewer.tests/packages.config
+++ b/Brighter/paramore.brighter.commandprocessor.viewer.tests/packages.config
@@ -6,7 +6,7 @@
   <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net451" />
   <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net451" />
   <package id="Microsoft.AspNet.WebApi.Owin" version="5.2.3" targetFramework="net451" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net451" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net451" />
   <package id="Microsoft.Owin.Hosting" version="3.0.1" targetFramework="net451" />
   <package id="Microsoft.SqlServer.Compact" version="4.0.8876.1" targetFramework="net451" />
   <package id="Nancy" version="1.2.0" targetFramework="net451" />