diff --git a/src/OpenRetail.App.Cashier/packages.config b/src/OpenRetail.App.Cashier/packages.config
index ad9088a..bf95045 100644
--- a/src/OpenRetail.App.Cashier/packages.config
+++ b/src/OpenRetail.App.Cashier/packages.config
@@ -5,7 +5,7 @@
   <package id="Dapper.Contrib" version="1.50.0" targetFramework="net40" />
   <package id="DockPanelSuite" version="3.0.1" targetFramework="net40" />
   <package id="GodSharp.SerialPort" version="1.1.2" targetFramework="net40" />
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net40" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net40" />
   <package id="Npgsql" version="2.2.7" targetFramework="net40" />
   <package id="RestSharp" version="105.2.3" targetFramework="net40" />
 </packages>
\ No newline at end of file