diff --git a/packages.config b/packages.config
index 84b534e..a211854 100644
--- a/packages.config
+++ b/packages.config
@@ -9,7 +9,7 @@
   <package id="MathNet.Symbolics" targetFramework="net47" version="0.20.0"/>
   <package id="morelinq" targetFramework="net47" version="3.2.0"/>
   <package id="NDesk.Options" targetFramework="net47" version="0.2.1"/>
-  <package id="Newtonsoft.Json" targetFramework="net47" version="12.0.2"/>
+  <package id="Newtonsoft.Json" targetFramework="net47" version="13.0.1"/>
   <package id="Nito.AsyncEx" targetFramework="net47" version="5.0.0"/>
   <package id="Nito.AsyncEx.Context" targetFramework="net47" version="5.0.0"/>
   <package id="Nito.AsyncEx.Coordination" targetFramework="net47" version="5.0.0"/>