diff --git a/Yort.OnlineEftpos.Net40/packages.config b/Yort.OnlineEftpos.Net40/packages.config
index df81d4d..85183bf 100644
--- a/Yort.OnlineEftpos.Net40/packages.config
+++ b/Yort.OnlineEftpos.Net40/packages.config
@@ -4,5 +4,5 @@
   <package id="Microsoft.Bcl.Async" version="1.0.168" targetFramework="net403" />
   <package id="Microsoft.Bcl.Build" version="1.0.21" targetFramework="net403" />
   <package id="Microsoft.Net.Http" version="2.2.29" targetFramework="net403" />
-  <package id="Newtonsoft.Json" version="8.0.2" targetFramework="net403" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net403" />
 </packages>
\ No newline at end of file