diff --git a/Yort.OnlineEftpos.WinRT/packages.config b/Yort.OnlineEftpos.WinRT/packages.config
index 9832ac3..fe8146e 100644
--- a/Yort.OnlineEftpos.WinRT/packages.config
+++ b/Yort.OnlineEftpos.WinRT/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="6.0.8" targetFramework="portable46-win81+wpa81" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="portable46-win81+wpa81" />
 </packages>
\ No newline at end of file