diff --git a/source/GitHubMvcCodeFlowClientManual/packages.config b/source/GitHubMvcCodeFlowClientManual/packages.config
index 032f007..86950c8 100644
--- a/source/GitHubMvcCodeFlowClientManual/packages.config
+++ b/source/GitHubMvcCodeFlowClientManual/packages.config
@@ -16,7 +16,7 @@
   <package id="Microsoft.Owin.Security.Cookies" version="3.0.0" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
   <package id="Modernizr" version="2.8.3" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.6" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="Respond" version="1.4.2" targetFramework="net45" />
   <package id="System.IdentityModel.Tokens.Jwt" version="4.0.1" targetFramework="net45" />