diff --git a/Chapter.14/StockTicker.Server.Cs/packages.config b/Chapter.14/StockTicker.Server.Cs/packages.config
index bd72a49..0adde75 100644
--- a/Chapter.14/StockTicker.Server.Cs/packages.config
+++ b/Chapter.14/StockTicker.Server.Cs/packages.config
@@ -18,7 +18,7 @@
   <package id="Microsoft.Owin.Hosting" version="3.1.0" targetFramework="net47" />
   <package id="Microsoft.Owin.Security" version="3.1.0" targetFramework="net47" />
   <package id="Microsoft.Tpl.Dataflow" version="4.5.24" targetFramework="net47" />
-  <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net47" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net47" />
   <package id="Owin" version="1.0" targetFramework="net47" />
   <package id="Swashbuckle.Core" version="5.6.0" targetFramework="net47" />
   <package id="System.Collections" version="4.0.11" targetFramework="net47" />