diff --git a/pkgs/by-name/la/lacus/package.nix b/pkgs/by-name/la/lacus/package.nix
index 873fce501507..0f62ff18fed5 100644
--- a/pkgs/by-name/la/lacus/package.nix
+++ b/pkgs/by-name/la/lacus/package.nix
@@ -15,11 +15,11 @@ python3.pkgs.buildPythonApplication rec {
     hash = "sha256-VFNW13PupJOroIhqnuLOq3mqU9nXEy1hmjHBQfErSN8=";
   };
 
-  nativeBuildInputs = with python3.pkgs; [
+  build-system = with python3.pkgs; [
     poetry-core
   ];
 
-  propagatedBuildInputs = with python3.pkgs; [
+  dependencies = with python3.pkgs; [
     flask-restx
     gunicorn
     lacuscore