diff --git a/pkgs/development/python-modules/pygti/default.nix b/pkgs/development/python-modules/pygti/default.nix
index a9ee409a15ae..f557ffef4610 100644
--- a/pkgs/development/python-modules/pygti/default.nix
+++ b/pkgs/development/python-modules/pygti/default.nix
@@ -2,28 +2,34 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  setuptools-scm,
+  hatchling,
+  hatch-vcs,
   aiohttp,
+  pydantic,
   pytz,
   voluptuous,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "pygti";
-  version = "0.10.0";
+  version = "1.1.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "vigonotion";
     repo = "pygti";
-    tag = version;
-    hash = "sha256-2T4Yw4XEOkv+IWyB4Xa2dPu929VH0tLeUjQ5S8EVXz0=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-B+jz91xoN7GiU4PnJTG5Kt1eA4ST63d+ZEgRrr9Xio8=";
   };
 
-  build-system = [ setuptools-scm ];
+  build-system = [
+    hatchling
+    hatch-vcs
+  ];
 
   dependencies = [
     aiohttp
+    pydantic
     pytz
     voluptuous
   ];
@@ -38,10 +44,10 @@ buildPythonPackage rec {
   ];
 
   meta = {
-    changelog = "https://github.com/vigonotion/pygti/releases/tag/${src.tag}";
+    changelog = "https://github.com/vigonotion/pygti/releases/tag/${finalAttrs.src.tag}";
     description = "Access public transport information in Hamburg, Germany";
     homepage = "https://github.com/vigonotion/pygti";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ dotlambda ];
   };
-}
+})