diff --git a/pkgs/development/python-modules/pygount/default.nix b/pkgs/development/python-modules/pygount/default.nix
index f6d8cd3d55e2..e6cc42c4a6b9 100644
--- a/pkgs/development/python-modules/pygount/default.nix
+++ b/pkgs/development/python-modules/pygount/default.nix
@@ -2,7 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  poetry-core,
+  hatchling,
   chardet,
   gitpython,
   pygments,
@@ -12,28 +12,34 @@
 
 buildPythonPackage rec {
   pname = "pygount";
-  version = "1.8.0";
+  version = "2.0.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "roskakori";
     repo = "pygount";
     tag = "v${version}";
-    hash = "sha256-PFqcSnJoGL4bXFy3hu3Iurbb8QK1NqCDs8aJmMxP4Hc=";
+    hash = "sha256-l2Rq+4u6NwUIwMYWY/qfne7DrG0guv6hwnqVq5wszAo=";
   };
 
-  pythonRelaxDeps = [ "rich" ];
-
-  nativeBuildInputs = [ poetry-core ];
-
-  propagatedBuildInputs = [
-    chardet
-    gitpython
-    pygments
-    rich
+  build-system = [
+    hatchling
   ];
 
-  nativeCheckInputs = [ pytestCheckHook ];
+  pythonRelaxDeps = [
+    "rich"
+  ];
+
+  dependencies = [
+    pygments
+    chardet
+    rich
+    gitpython
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
 
   disabledTests = [
     # requires network access
@@ -43,12 +49,12 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "pygount" ];
 
-  meta = with lib; {
+  meta = {
     description = "Count lines of code for hundreds of languages using pygments";
     mainProgram = "pygount";
     homepage = "https://github.com/roskakori/pygount";
     changelog = "https://github.com/roskakori/pygount/blob/${src.rev}/CHANGES.md";
-    license = with licenses; [ bsd3 ];
-    maintainers = with maintainers; [ nickcao ];
+    license = with lib.licenses; [ bsd3 ];
+    maintainers = with lib.maintainers; [ nickcao ];
   };
 }