diff --git a/pkgs/development/python-modules/masky/default.nix b/pkgs/development/python-modules/masky/default.nix
index d8ecee4241ec..8f11f1e2cb30 100644
--- a/pkgs/development/python-modules/masky/default.nix
+++ b/pkgs/development/python-modules/masky/default.nix
@@ -7,12 +7,13 @@
   fetchFromGitHub,
   impacket,
   pyasn1,
+  setuptools_80,
 }:
 
 buildPythonPackage rec {
   pname = "masky";
   version = "0.2.0";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "Z4kSec";
@@ -21,7 +22,9 @@ buildPythonPackage rec {
     hash = "sha256-npRuszHkxwjJ+B+q8eQywXPd0OX0zS+AfCro4TM83Uc=";
   };
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools_80 ];
+
+  dependencies = [
     asn1crypto
     colorama
     cryptography