diff --git a/pkgs/development/python-modules/ircstates/default.nix b/pkgs/development/python-modules/ircstates/default.nix
index ab28fb911aa3..3efe469fe093 100644
--- a/pkgs/development/python-modules/ircstates/default.nix
+++ b/pkgs/development/python-modules/ircstates/default.nix
@@ -2,36 +2,36 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  pythonOlder,
+  setuptools,
   irctokens,
   pendulum,
   freezegun,
-  python,
+  unittestCheckHook,
 }:
 
 buildPythonPackage rec {
   pname = "ircstates";
-  version = "0.12.1";
-  format = "setuptools";
-  disabled = pythonOlder "3.6"; # f-strings
+  version = "0.13.0";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "jesopo";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-F9yOY3YBacyoUzNTvPs7pxp6yNx08tiq1jWQKhGiagc=";
+    hash = "sha256-Mq9aOj6PXzPjaz3ofoPcAbur59oUWffmEg8aHt0v+0Q=";
   };
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools ];
+
+  dependencies = [
     irctokens
     pendulum
   ];
 
-  nativeCheckInputs = [ freezegun ];
-
-  checkPhase = ''
-    ${python.interpreter} -m unittest test
-  '';
+  nativeCheckInputs = [
+    freezegun
+    unittestCheckHook
+  ];
 
   pythonImportsCheck = [ "ircstates" ];