diff --git a/CSum.FK/CSum/packages.config b/CSum.FK/CSum/packages.config
index 2f5c0bf..0cf0d2b 100644
--- a/CSum.FK/CSum/packages.config
+++ b/CSum.FK/CSum/packages.config
@@ -2,5 +2,5 @@
 <packages>
   <package id="Common.Logging" version="3.3.1" targetFramework="net45" />
   <package id="Common.Logging.Core" version="3.3.1" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.4" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
 </packages>
\ No newline at end of file