diff --git a/pkgs/development/python-modules/kconfiglib/default.nix b/pkgs/development/python-modules/kconfiglib/default.nix
index 7d83d2c4338f..26320cccd1e4 100644
--- a/pkgs/development/python-modules/kconfiglib/default.nix
+++ b/pkgs/development/python-modules/kconfiglib/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "kconfiglib";
-  version = "10.36.0";
+  version = "12.12.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1qhy4vv1rpgx4r1la14symxv3cpz7klqakn1rqdagwyaqp667g9b";
+    sha256 = "0afc0gidh0pjb0ll99xifzs5z14g365crfj935614zp9w8fcchp0";
   };
 
   # doesnt work out of the box but might be possible