diff --git a/pkgs/development/python-modules/pyyaml-env-tag/default.nix b/pkgs/development/python-modules/pyyaml-env-tag/default.nix
index 8167c85c6534..69014895c8ce 100644
--- a/pkgs/development/python-modules/pyyaml-env-tag/default.nix
+++ b/pkgs/development/python-modules/pyyaml-env-tag/default.nix
@@ -2,24 +2,25 @@
   lib,
   buildPythonPackage,
   fetchPypi,
-  pythonOlder,
   pyyaml,
   pytestCheckHook,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "pyyaml-env-tag";
-  version = "0.1";
-  format = "setuptools";
-  disabled = pythonOlder "3.6";
+  version = "1.1";
+  pyproject = true;
 
   src = fetchPypi {
     pname = "pyyaml_env_tag";
     inherit version;
-    sha256 = "1nsva88jsmwn0cb9jnrfiz4dvs9xakkpgfii7g1xwkx1pmsjc2bh";
+    sha256 = "sha256-LrOLdaLSHuBHXW2X7BnGMoen4UAjHkIUlp0OrJI81/8=";
   };
 
-  propagatedBuildInputs = [ pyyaml ];
+  build-system = [ setuptools ];
+
+  dependencies = [ pyyaml ];
 
   nativeCheckInputs = [ pytestCheckHook ];