diff --git a/ApplicationServices.Test/packages.config b/ApplicationServices.Test/packages.config
index d1b05e81..a8f43ee2 100644
--- a/ApplicationServices.Test/packages.config
+++ b/ApplicationServices.Test/packages.config
@@ -7,7 +7,7 @@
   <package id="Microsoft.AspNet.WebApi.Owin" version="5.2.2" targetFramework="net45" />
   <package id="Microsoft.OData.Core" version="6.5.0" targetFramework="net45" />
   <package id="Microsoft.OData.Edm" version="6.5.0" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Hosting" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Testing" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Spatial" version="6.5.0" targetFramework="net45" />