diff --git a/pkgs/development/python-modules/mobi/default.nix b/pkgs/development/python-modules/mobi/default.nix
index ad16c1a23b05..c5e5d1e898c4 100644
--- a/pkgs/development/python-modules/mobi/default.nix
+++ b/pkgs/development/python-modules/mobi/default.nix
@@ -3,33 +3,35 @@
   buildPythonPackage,
   fetchFromGitHub,
   loguru,
-  poetry-core,
-  setuptools,
+  hatchling,
   standard-imghdr,
+  pytestCheckHook,
 }:
 
 buildPythonPackage rec {
   pname = "mobi";
-  version = "0.3.3";
+  version = "0.4.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "iscc";
     repo = "mobi";
     tag = "v${version}";
-    hash = "sha256-g1L72MkJdrKQRsEdew+Qsn8LfCn8+cmj2pmY6s4nv2U=";
+    hash = "sha256-Hbw4TX/yKkuxYQ9vZZp/wasDCop8pvyQc5zWloMQbng=";
   };
 
+  build-system = [ hatchling ];
+
   pythonRelaxDeps = [ "loguru" ];
 
-  dependencies = [ standard-imghdr ];
-
-  nativeBuildInputs = [
-    poetry-core
-    setuptools
+  dependencies = [
+    loguru
+    standard-imghdr
   ];
 
-  propagatedBuildInputs = [ loguru ];
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
 
   pythonImportsCheck = [ "mobi" ];