diff --git a/pkgs/development/python-modules/pytrafikverket/default.nix b/pkgs/development/python-modules/pytrafikverket/default.nix
index 20b08ebd4431..c1c195fd5013 100644
--- a/pkgs/development/python-modules/pytrafikverket/default.nix
+++ b/pkgs/development/python-modules/pytrafikverket/default.nix
@@ -2,26 +2,29 @@
 , buildPythonPackage
 , fetchPypi
 , aiohttp
-, async-timeout
 , lxml
 , pythonOlder
+, setuptools
 }:
 
 buildPythonPackage rec {
   pname = "pytrafikverket";
-  version = "0.3.8";
-  format = "setuptools";
+  version = "0.3.9.1";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-3p2tKFuzgl+VFRRXV66MRgcL1XS8xxDqMOUZw+Ql/5E=";
+    hash = "sha256-F0BMpZVzSK0i+tdvN//KZQqgxFrfLf0SCNztKCs6BYQ=";
   };
 
+  nativeBuildInputs = [
+    setuptools
+  ];
+
   propagatedBuildInputs = [
     aiohttp
-    async-timeout
     lxml
   ];