diff --git a/pkgs/development/python-modules/virtualenv-clone/default.nix b/pkgs/development/python-modules/virtualenv-clone/default.nix
index cceee784a234..3333a15c6dfc 100644
--- a/pkgs/development/python-modules/virtualenv-clone/default.nix
+++ b/pkgs/development/python-modules/virtualenv-clone/default.nix
@@ -4,12 +4,13 @@
   fetchFromGitHub,
   virtualenv,
   pytestCheckHook,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "virtualenv-clone";
   version = "0.5.7";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "edwardgeorge";
@@ -18,6 +19,8 @@ buildPythonPackage rec {
     hash = "sha256-qrN74IwLRqiVPxU8gVhdiM34yBmiS/5ot07uroYPDVw=";
   };
 
+  build-system = [ setuptools ];
+
   postPatch = ''
     substituteInPlace tests/__init__.py \
       --replace-fail "'virtualenv'" "'${virtualenv}/bin/virtualenv'" \
@@ -35,7 +38,7 @@ buildPythonPackage rec {
         "pth = '$(mktemp -d)/test_fixup_pth_file.pth'"
   '';
 
-  propagatedBuildInputs = [ virtualenv ];
+  dependencies = [ virtualenv ];
 
   nativeCheckInputs = [ pytestCheckHook ];