diff --git a/demo_win_httpsocket/packages.config b/demo_win_httpsocket/packages.config
index 3b56121..c295a3e 100644
--- a/demo_win_httpsocket/packages.config
+++ b/demo_win_httpsocket/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net45" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net45" />
   <package id="System.Reactive.Interfaces" version="3.1.1" targetFramework="net45" />
   <package id="System.Reactive.Linq" version="3.1.1" targetFramework="net45" />