diff --git a/Chapter.10/Combinators.fs/packages.config b/Chapter.10/Combinators.fs/packages.config
index 99b1bb50..a10b8242 100644
--- a/Chapter.10/Combinators.fs/packages.config
+++ b/Chapter.10/Combinators.fs/packages.config
@@ -7,7 +7,7 @@
   <package id="Microsoft.Data.Edm" version="5.8.2" targetFramework="net47" />
   <package id="Microsoft.Data.OData" version="5.8.2" targetFramework="net47" />
   <package id="Microsoft.Data.Services.Client" version="5.8.2" targetFramework="net47" />
-  <package id="Newtonsoft.Json" version="6.0.8" targetFramework="net47" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net47" />
   <package id="System.Collections" version="4.0.11" targetFramework="net47" />
   <package id="System.ComponentModel.EventBasedAsync" version="4.0.11" targetFramework="net47" />
   <package id="System.Console" version="4.0.0" targetFramework="net47" />