diff --git a/Brighter/paramore.brighter.comandprocessor.messageviewer/packages.config b/Brighter/paramore.brighter.comandprocessor.messageviewer/packages.config
index db76185306..19b2311c8d 100644
--- a/Brighter/paramore.brighter.comandprocessor.messageviewer/packages.config
+++ b/Brighter/paramore.brighter.comandprocessor.messageviewer/packages.config
@@ -4,7 +4,7 @@
   <package id="CsQuery" version="1.3.4" targetFramework="net45" />
   <package id="Humanizer" version="1.37.0" targetFramework="net45" />
   <package id="jQuery" version="2.1.4" 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.Hosting" version="3.0.1" targetFramework="net45" />
   <package id="mustache.js" version="0.8.1" targetFramework="net45" />
   <package id="Nancy" version="1.2.0" targetFramework="net45" />