diff --git a/pkgs/development/python-modules/ansi2image/default.nix b/pkgs/development/python-modules/ansi2image/default.nix
index 3967bbc87c3f..d8229e25598d 100644
--- a/pkgs/development/python-modules/ansi2image/default.nix
+++ b/pkgs/development/python-modules/ansi2image/default.nix
@@ -5,12 +5,13 @@
   fetchFromGitHub,
   pillow,
   pytestCheckHook,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "ansi2image";
   version = "0.1.5";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "helviojunior";
@@ -19,7 +20,9 @@ buildPythonPackage rec {
     hash = "sha256-GWrVo1WJux+ATvG5F9J4WMDlI0XAeTpQg7NrkN1P4Co=";
   };
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools ];
+
+  dependencies = [
     colorama
     pillow
   ];