diff --git a/src/Core/packages.config b/src/Core/packages.config
index 07477737e..203856e18 100644
--- a/src/Core/packages.config
+++ b/src/Core/packages.config
@@ -5,7 +5,7 @@
   <package id="FluentValidationNA" version="1.2.16" targetFramework="net45" />
   <package id="LinqExtender" version="3.0.1" targetFramework="net45" />
   <package id="log4net" version="2.0.8" targetFramework="net452" />
-  <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net452" />
+  <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net452" />
   <package id="SuperSocket.ClientEngine.Core" version="0.10.0" targetFramework="net452" />
   <package id="SuperWebSocket" version="0.9.0.2" targetFramework="net45" />
   <package id="System.Linq.Dynamic.Library" version="1.1.14" targetFramework="net45" />