diff --git a/Structurizr.Core/Structurizr.Core.csproj b/Structurizr.Core/Structurizr.Core.csproj
index c502358..705b51a 100644
--- a/Structurizr.Core/Structurizr.Core.csproj
+++ b/Structurizr.Core/Structurizr.Core.csproj
@@ -17,6 +17,6 @@
     <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 </Project>
\ No newline at end of file