diff --git a/pkgs/by-name/al/alerta-server/package.nix b/pkgs/by-name/al/alerta-server/package.nix
index a8109b35fd33..0c83ccd4fbc6 100644
--- a/pkgs/by-name/al/alerta-server/package.nix
+++ b/pkgs/by-name/al/alerta-server/package.nix
@@ -7,14 +7,16 @@
 python3.pkgs.buildPythonApplication (finalAttrs: {
   pname = "alerta-server";
   version = "9.0.1";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit (finalAttrs) pname version;
     hash = "sha256-v4+0l5Sx9RTxmNFnKCoKrWFl1xu1JIRZ/kiI6zi/y0I=";
   };
 
-  propagatedBuildInputs = with python3.pkgs; [
+  build-system = [ python3.pkgs.setuptools_80 ];
+
+  dependencies = with python3.pkgs; [
     bcrypt
     blinker
     cryptography