diff --git a/root/programs/WS_sampleCore/WSServer_sample/WSServer_sample.csproj b/root/programs/WS_sampleCore/WSServer_sample/WSServer_sample.csproj
index 9b7921f..359a5ec 100644
--- a/root/programs/WS_sampleCore/WSServer_sample/WSServer_sample.csproj
+++ b/root/programs/WS_sampleCore/WSServer_sample/WSServer_sample.csproj
@@ -16,7 +16,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.1" />
   </ItemGroup>