diff --git a/part4/solution/solution.csproj b/part4/solution/solution.csproj
index ba8627e..8afcdaf 100644
--- a/part4/solution/solution.csproj
+++ b/part4/solution/solution.csproj
@@ -6,7 +6,7 @@
   <ItemGroup>
     <PackageReference Include="GraphQL" Version="2.4.0" />
     <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="1.0.31" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="System.Text.Json" Version="4.7.1" />
   </ItemGroup>
   <ItemGroup>