diff --git a/pkgs/development/python-modules/deep-chainmap/default.nix b/pkgs/development/python-modules/deep-chainmap/default.nix
index f682de99cbad..9b3c6c9ac240 100644
--- a/pkgs/development/python-modules/deep-chainmap/default.nix
+++ b/pkgs/development/python-modules/deep-chainmap/default.nix
@@ -2,12 +2,13 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  hatchling,
 }:
 
 buildPythonPackage rec {
   pname = "deep-chainmap";
   version = "0.1.2";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     pname = "deep_chainmap";
@@ -15,6 +16,8 @@ buildPythonPackage rec {
     hash = "sha256-R7Pfh+1bYJ7LCU+0SyZi2XGOsgL1zWiMkp1z9HD1I1w=";
   };
 
+  build-system = [ hatchling ];
+
   # Tests are not published to pypi
   doCheck = false;
 
@@ -23,7 +26,7 @@ buildPythonPackage rec {
   # See the guide for more information: https://nixos.org/nixpkgs/manual/#chap-meta
   meta = with lib; {
     description = "Recursive subclass of ChainMap";
-    homepage = "https://github.com/neutrinoceros/deep-chainmap";
+    homepage = "https://github.com/neutrinoceros/deep_chainmap";
     license = licenses.mit;
     maintainers = with maintainers; [ rehno-lindeque ];
   };