diff --git a/pkgs/development/python-modules/wn/default.nix b/pkgs/development/python-modules/wn/default.nix
index 1e0cb595d06d..5b020a58d393 100644
--- a/pkgs/development/python-modules/wn/default.nix
+++ b/pkgs/development/python-modules/wn/default.nix
@@ -2,6 +2,7 @@
 , buildPythonPackage
 , fetchPypi
 , pytestCheckHook
+, pythonOlder
 , flit-core
 , requests
 , tomli
@@ -10,7 +11,9 @@
 buildPythonPackage rec {
   pname = "wn";
   version = "0.9.5";
-  format = "pyproject";
+  pyproject = true;
+
+  disabled = pythonOlder "3.8";
 
   src = fetchPypi {
     inherit pname version;