diff --git a/tests/WebHelpers.Mvc5.Demo/packages.config b/tests/WebHelpers.Mvc5.Demo/packages.config
index 56204cd..6af4e04 100644
--- a/tests/WebHelpers.Mvc5.Demo/packages.config
+++ b/tests/WebHelpers.Mvc5.Demo/packages.config
@@ -8,7 +8,7 @@
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="1.0.8" targetFramework="net462" />
   <package id="Microsoft.Net.Compilers" version="2.7.0" targetFramework="net462" developmentDependency="true" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net462" />
-  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net462" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net462" />
   <package id="RouteJs.Mvc5" version="2.2.0" targetFramework="net462" />
   <package id="WebActivatorEx" version="2.2.0" targetFramework="net462" />
   <package id="WebGrease" version="1.6.0" targetFramework="net462" />