diff --git a/source/Tests/UnitTests/packages.config b/source/Tests/UnitTests/packages.config
index d1ddee664..b25aade92 100644
--- a/source/Tests/UnitTests/packages.config
+++ b/source/Tests/UnitTests/packages.config
@@ -9,7 +9,7 @@
   <package id="Microsoft.Owin.Cors" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Hosting" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net45" />
-  <package id="Microsoft.Owin.Security.Cookies" version="3.0.1" targetFramework="net45" />
+  <package id="Microsoft.Owin.Security.Cookies" version="4.2.2" targetFramework="net45" />
   <package id="Microsoft.Owin.Security.Google" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Testing" version="3.0.1" targetFramework="net45" />
   <package id="Moq" version="4.2.1507.0118" targetFramework="net45" />