diff --git a/csharp/GitHubAddComment/GitHubAddComment/GitHubAddComment.csproj b/csharp/GitHubAddComment/GitHubAddComment/GitHubAddComment.csproj
index 9c432fa..56e5643 100644
--- a/csharp/GitHubAddComment/GitHubAddComment/GitHubAddComment.csproj
+++ b/csharp/GitHubAddComment/GitHubAddComment/GitHubAddComment.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
 </Project>