diff --git a/Pql/Engine/UnitTest/packages.config b/Pql/Engine/UnitTest/packages.config
index e6e78d7..0f81142 100644
--- a/Pql/Engine/UnitTest/packages.config
+++ b/Pql/Engine/UnitTest/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Irony" version="1.1.0" targetFramework="net472" />
-  <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net451" />
+  <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net451" />
   <package id="protobuf-net" version="2.4.0" targetFramework="net451" />
   <package id="StructureMap" version="4.7.1" targetFramework="net451" />
   <package id="System.Reflection.Emit.Lightweight" version="4.3.0" targetFramework="net451" />