diff --git a/src/code-listings/lesson-26/NugetFSharp/packages.config b/src/code-listings/lesson-26/NugetFSharp/packages.config
index 4c13f7d..652154c 100644
--- a/src/code-listings/lesson-26/NugetFSharp/packages.config
+++ b/src/code-listings/lesson-26/NugetFSharp/packages.config
@@ -45,7 +45,7 @@
   <package id="Microsoft.Data.Edm" version="5.6.4" targetFramework="net45" />
   <package id="Microsoft.Data.OData" version="5.6.4" targetFramework="net45" />
   <package id="Microsoft.Data.Services.Client" version="5.6.4" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="System.Spatial" version="5.6.4" targetFramework="net45" />
   <package id="WindowsAzure.Storage" version="7.2.0" targetFramework="net45" />
 </packages>
\ No newline at end of file