diff --git a/pkgs/development/python-modules/ansimarkup/default.nix b/pkgs/development/python-modules/ansimarkup/default.nix
index 2f0a1f850103..8be72615a24a 100644
--- a/pkgs/development/python-modules/ansimarkup/default.nix
+++ b/pkgs/development/python-modules/ansimarkup/default.nix
@@ -2,23 +2,26 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  setuptools,
   pytestCheckHook,
   colorama,
 }:
 
 buildPythonPackage rec {
   pname = "ansimarkup";
-  version = "1.5.0";
-  format = "setuptools";
+  version = "2.1.0";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "gvalkov";
     repo = "python-ansimarkup";
-    rev = "v${version}";
-    hash = "sha256-HGeVapv2Z5GtPwSp3+dvUwAH0bFqu+Bmk5E6SRr7NO4=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-+kZt8tv09RHrMRZtvJPBBiFaeCksXyrlHqIabPrXYDY=";
   };
 
-  propagatedBuildInputs = [ colorama ];
+  build-system = [ setuptools ];
+
+  dependencies = [ colorama ];
 
   nativeCheckInputs = [ pytestCheckHook ];