diff --git a/DataLinker.Web.Test/packages.config b/DataLinker.Web.Test/packages.config
index a158631..4f5312c 100644
--- a/DataLinker.Web.Test/packages.config
+++ b/DataLinker.Web.Test/packages.config
@@ -7,7 +7,7 @@
   <package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net452" />
   <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net452" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net452" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net452" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net452" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net452" />
   <package id="Moq" version="4.2.1510.2205" targetFramework="net452" />
   <package id="Newtonsoft.Json" version="8.0.3" targetFramework="net452" />