diff --git a/pkgs/development/python-modules/ppdeep/default.nix b/pkgs/development/python-modules/ppdeep/default.nix
index 373283670560..c7721b9faa3d 100644
--- a/pkgs/development/python-modules/ppdeep/default.nix
+++ b/pkgs/development/python-modules/ppdeep/default.nix
@@ -2,26 +2,30 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "ppdeep";
   version = "20250622";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-QKEcNp8B+K5eE+2DOvfkMMIl9Y+gS3dlGqSWgeQe1Gw=";
+    hash = "sha256-QKEcNp8B+K5eE+2DOvfkMMIl9Y+gS3dlGqSWgeQe1Gw=";
   };
 
+  build-system = [ setuptools ];
+
   # Project has no tests
   doCheck = false;
+
   pythonImportsCheck = [ "ppdeep" ];
 
   meta = with lib; {
     description = "Python library for computing fuzzy hashes (ssdeep)";
     homepage = "https://github.com/elceef/ppdeep";
-    license = with licenses; [ asl20 ];
+    license = licenses.asl20;
     maintainers = with maintainers; [ fab ];
   };
 }