diff --git a/web/json-reference/TestServer/packages.config b/web/json-reference/TestServer/packages.config
index 7672c73..7c7f291 100644
--- a/web/json-reference/TestServer/packages.config
+++ b/web/json-reference/TestServer/packages.config
@@ -17,6 +17,6 @@
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="2.0.0" targetFramework="net472" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net472" />
   <package id="Modernizr" version="2.8.3" targetFramework="net472" />
-  <package id="Newtonsoft.Json" version="11.0.1" targetFramework="net472" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net472" />
   <package id="WebGrease" version="1.6.0" targetFramework="net472" />
 </packages>
\ No newline at end of file