diff --git a/Ultramarine.Generators.Serialization.Contracts/Ultramarine.Generators.Serialization.Contracts.csproj b/Ultramarine.Generators.Serialization.Contracts/Ultramarine.Generators.Serialization.Contracts.csproj
index 2f3beea..cc22b80 100644
--- a/Ultramarine.Generators.Serialization.Contracts/Ultramarine.Generators.Serialization.Contracts.csproj
+++ b/Ultramarine.Generators.Serialization.Contracts/Ultramarine.Generators.Serialization.Contracts.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
 </Project>