diff --git a/pkgs/development/python-modules/karton-core/default.nix b/pkgs/development/python-modules/karton-core/default.nix
index f05f176f74aa..e9c0b9cb07c4 100644
--- a/pkgs/development/python-modules/karton-core/default.nix
+++ b/pkgs/development/python-modules/karton-core/default.nix
@@ -23,11 +23,11 @@ buildPythonPackage rec {
     hash = "sha256-q12S80GZFyh7zU6iMeCkyIesMK8qXtZ1B69w8H5LpOU=";
   };
 
-  nativeBuildInputs = [
+  build-system = [
     setuptools
   ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     boto3
     orjson
     redis