diff --git a/src/code-listings/lesson-39/sample-solution/Web/packages.config b/src/code-listings/lesson-39/sample-solution/Web/packages.config
index ef62fb8..c39c90d 100644
--- a/src/code-listings/lesson-39/sample-solution/Web/packages.config
+++ b/src/code-listings/lesson-39/sample-solution/Web/packages.config
@@ -10,7 +10,7 @@
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.0" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
   <package id="MSBuild.Extension.Pack" version="1.3.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="Swashbuckle" version="5.5.3" targetFramework="net45" />
   <package id="Swashbuckle.Core" version="5.5.3" targetFramework="net45" />