diff --git a/Chapter18x/StreetFoo.Client/StreetFoo.Client/packages.config b/Chapter18x/StreetFoo.Client/StreetFoo.Client/packages.config
index 76c7235..dd4f881 100644
--- a/Chapter18x/StreetFoo.Client/StreetFoo.Client/packages.config
+++ b/Chapter18x/StreetFoo.Client/StreetFoo.Client/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="MetroLog" version="0.8.1.1" targetFramework="win" />
-  <package id="Newtonsoft.Json" version="4.5.7" />
+  <package id="Newtonsoft.Json" version="13.0.1" />
 </packages>
\ No newline at end of file