diff --git a/WinFormsServer/packages.config b/WinFormsServer/packages.config
index fa9169a..34e1366 100644
--- a/WinFormsServer/packages.config
+++ b/WinFormsServer/packages.config
@@ -10,6 +10,6 @@
   <package id="Microsoft.Owin.Hosting" version="4.0.1" targetFramework="net452" />
   <package id="Microsoft.Owin.Security" version="2.1.0" targetFramework="net452" />
   <package id="Microsoft.Owin.SelfHost" version="4.0.1" targetFramework="net452" />
-  <package id="Newtonsoft.Json" version="6.0.4" targetFramework="net452" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net452" />
   <package id="Owin" version="1.0" targetFramework="net452" />
 </packages>
\ No newline at end of file