diff --git a/src/FluiTec.AppFx.UnitTesting.Helper/FluiTec.AppFx.UnitTesting.Helper.csproj b/src/FluiTec.AppFx.UnitTesting.Helper/FluiTec.AppFx.UnitTesting.Helper.csproj
index e7d8143..fc22b07 100644
--- a/src/FluiTec.AppFx.UnitTesting.Helper/FluiTec.AppFx.UnitTesting.Helper.csproj
+++ b/src/FluiTec.AppFx.UnitTesting.Helper/FluiTec.AppFx.UnitTesting.Helper.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
   </ItemGroup>
 
 </Project>