diff --git a/samples/XRPC.WPF/Client/packages.config b/samples/XRPC.WPF/Client/packages.config
index b33e41b..677908a 100644
--- a/samples/XRPC.WPF/Client/packages.config
+++ b/samples/XRPC.WPF/Client/packages.config
@@ -5,7 +5,7 @@
   <package id="MessagePack" version="2.0.323" targetFramework="net472" />
   <package id="MessagePack.Annotations" version="2.0.323" targetFramework="net472" />
   <package id="MessagePackAnalyzer" version="2.0.323" targetFramework="net472" />
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net472" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net472" />
   <package id="Northwind.Data" version="1.2.3" targetFramework="net472" />
   <package id="protobuf-net" version="2.4.0" targetFramework="net472" />
   <package id="System.Buffers" version="4.5.0" targetFramework="net472" />