diff --git a/PlcReadTest/packages.config b/PlcReadTest/packages.config
index c9bc0ee..c8c520e 100644
--- a/PlcReadTest/packages.config
+++ b/PlcReadTest/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="HslCommunication" version="9.2.5" targetFramework="net35" />
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net35" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net35" />
 </packages>
\ No newline at end of file