diff --git a/pkgs/development/python-modules/isbnlib/default.nix b/pkgs/development/python-modules/isbnlib/default.nix
index b94f9439f732..8bf7e67b9ecd 100644
--- a/pkgs/development/python-modules/isbnlib/default.nix
+++ b/pkgs/development/python-modules/isbnlib/default.nix
@@ -4,15 +4,13 @@
   fetchFromGitHub,
   pytestCheckHook,
   pytest-cov,
-  pythonOlder,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "isbnlib";
   version = "3.10.14";
-  format = "setuptools";
-
-  disabled = pythonOlder "3.7";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "xlcnd";
@@ -21,6 +19,8 @@ buildPythonPackage rec {
     hash = "sha256-d6p0wv7kj+NOZJRE2rzQgb7PXv+E3tASIibYCjzCdx8=";
   };
 
+  build-system = [ setuptools ];
+
   nativeCheckInputs = [
     pytestCheckHook
     pytest-cov