diff --git a/s3-uploader/runtimes/dotnet9_aot_on_provided_al2023/src/LambdaPerf.csproj b/s3-uploader/runtimes/dotnet9_aot_on_provided_al2023/src/LambdaPerf.csproj
index fe7252efa6..5e787adfd2 100644
--- a/s3-uploader/runtimes/dotnet9_aot_on_provided_al2023/src/LambdaPerf.csproj
+++ b/s3-uploader/runtimes/dotnet9_aot_on_provided_al2023/src/LambdaPerf.csproj
@@ -18,7 +18,7 @@
   <ItemGroup>
     <PackageReference Include="Amazon.Lambda.RuntimeSupport" Version="2.1.1" />
     <PackageReference Include="Amazon.Lambda.Core" Version="3.1.0" />
-    <PackageReference Include="Amazon.Lambda.Serialization.SystemTextJson" Version="2.4.4" />
+    <PackageReference Include="Amazon.Lambda.Serialization.SystemTextJson" Version="3.0.0" />
   </ItemGroup>
 
 </Project>