diff --git a/FontBuilder/packages.config b/FontBuilder/packages.config
index c1a3c671e..5d48503f4 100644
--- a/FontBuilder/packages.config
+++ b/FontBuilder/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net471" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net471" />
   <package id="System.Collections" version="4.0.11" targetFramework="net471" />
   <package id="System.Console" version="4.0.0" targetFramework="net471" />
   <package id="System.Diagnostics.Debug" version="4.0.11" targetFramework="net471" />