diff --git a/AjaxControlToolkit.SampleSite/packages.config b/AjaxControlToolkit.SampleSite/packages.config
index 0fed48b0d..6993567c7 100644
--- a/AjaxControlToolkit.SampleSite/packages.config
+++ b/AjaxControlToolkit.SampleSite/packages.config
@@ -4,6 +4,6 @@
   <package id="HtmlAgilityPack" version="1.4.9" targetFramework="net40" />
   <package id="Microsoft.AspNet.Web.Optimization" version="1.1.3" targetFramework="net40" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net40" />
-  <package id="Newtonsoft.Json" version="5.0.4" targetFramework="net40" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net40" />
   <package id="WebGrease" version="1.5.2" targetFramework="net40" />
 </packages>
\ No newline at end of file