diff --git a/Shopping.DemoApp.iOS/packages.config b/Shopping.DemoApp.iOS/packages.config
old mode 100755
new mode 100644
index fb49a54..2dee2fd
--- a/Shopping.DemoApp.iOS/packages.config
+++ b/Shopping.DemoApp.iOS/packages.config
@@ -17,7 +17,7 @@
   <package id="Microsoft.ProjectOxford.Emotion" version="1.0.331.1" targetFramework="xamarinios10" />
   <package id="Microsoft.Win32.Primitives" version="4.0.1" targetFramework="xamarinios10" />
   <package id="NETStandard.Library" version="1.6.0" targetFramework="xamarinios10" />
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="xamarinios10" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="xamarinios10" />
   <package id="PCLStorage" version="1.0.2" targetFramework="xamarinios10" />
   <package id="Splat" version="1.6.2" targetFramework="xamarinios10" />
   <package id="SQLitePCLRaw.bundle_green" version="1.1.0" targetFramework="xamarinios10" />