diff --git a/pkgs/development/python-modules/asttokens/default.nix b/pkgs/development/python-modules/asttokens/default.nix
index eb152a97fc6f..b5033d05664e 100644
--- a/pkgs/development/python-modules/asttokens/default.nix
+++ b/pkgs/development/python-modules/asttokens/default.nix
@@ -1,26 +1,26 @@
 {
   lib,
-  fetchPypi,
-  buildPythonPackage,
-  setuptools-scm,
-  six,
   astroid,
+  buildPythonPackage,
+  fetchPypi,
   pytestCheckHook,
+  pythonOlder,
+  setuptools-scm,
 }:
 
 buildPythonPackage rec {
   pname = "asttokens";
   version = "3.0.0";
-  format = "pyproject";
+  pyproject = true;
+
+  disabled = pythonOlder "3.8";
 
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-Dc2Lqo1isMHRGLOZst26PEr/Jx0Nep4NTBaBx5A1u8c=";
   };
 
-  nativeBuildInputs = [ setuptools-scm ];
-
-  propagatedBuildInputs = [ six ];
+  build-system = [ setuptools-scm ];
 
   nativeCheckInputs = [
     astroid
@@ -40,8 +40,8 @@ buildPythonPackage rec {
   pythonImportsCheck = [ "asttokens" ];
 
   meta = with lib; {
-    homepage = "https://github.com/gristlabs/asttokens";
     description = "Annotate Python AST trees with source text and token information";
+    homepage = "https://github.com/gristlabs/asttokens";
     license = licenses.asl20;
     maintainers = with maintainers; [ leenaars ];
   };