diff --git a/pkgs/development/python-modules/validators/default.nix b/pkgs/development/python-modules/validators/default.nix
index 2f562a02ffdd..40c4b0b1fc98 100644
--- a/pkgs/development/python-modules/validators/default.nix
+++ b/pkgs/development/python-modules/validators/default.nix
@@ -1,34 +1,41 @@
 { lib
 , buildPythonPackage
-, fetchPypi
-, isPy27
-, decorator
-, six
+, fetchFromGitHub
+, poetry-core
 , pytestCheckHook
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "validators";
-  version = "0.20.0";
-  disabled = isPy27;
+  version = "0.21.1";
+  format = "pyproject";
 
-  src = fetchPypi {
-    inherit pname version;
-    hash = "sha256-JBSM5OZBAKLV4mcjPiPnr+tVMWtH0w+q5+tucpK8Imo=";
+  disabled = pythonOlder "3.8";
+
+  src = fetchFromGitHub {
+    owner = "python-validators";
+    repo = "validators";
+    rev = "refs/tags/${version}";
+    hash = "sha256-b5K1WP+cEAjPBXu9sAZQf1J5H7PLnn94400Zd/0Y9ew=";
   };
 
-  propagatedBuildInputs = [
-    decorator
-    six
+  nativeBuildInputs = [
+    poetry-core
   ];
 
   nativeCheckInputs = [
     pytestCheckHook
   ];
 
+  pythonImportsCheck = [
+    "validators"
+  ];
+
   meta = with lib; {
-    description = "Python Data Validation for Humans™";
+    description = "Python Data Validation for Humans";
     homepage = "https://github.com/kvesteri/validators";
+    changelog = "https://github.com/python-validators/validators/blob/${version}/CHANGES.md";
     license = licenses.bsd3;
     maintainers = [ ];
   };