diff --git a/Simplex.Demo/Simplex.Demo.csproj b/Simplex.Demo/Simplex.Demo.csproj
index 8934b73..4fc3013 100644
--- a/Simplex.Demo/Simplex.Demo.csproj
+++ b/Simplex.Demo/Simplex.Demo.csproj
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     
     <PackageReference Include="System.Reactive" Version="4.1.3" />
   </ItemGroup>