diff --git a/pkgs/development/python-modules/baseline/default.nix b/pkgs/development/python-modules/baseline/default.nix
index febab740c93d..218888366bae 100644
--- a/pkgs/development/python-modules/baseline/default.nix
+++ b/pkgs/development/python-modules/baseline/default.nix
@@ -2,6 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  setuptools,
   isPy3k,
   pytestCheckHook,
 }:
@@ -9,18 +10,25 @@
 buildPythonPackage {
   pname = "baseline";
   version = "1.2.1";
-  format = "setuptools";
+  pyproject = true;
+
+  __structuredAttrs = true;
+
   disabled = !isPy3k;
 
   src = fetchFromGitHub {
     owner = "dmgass";
     repo = "baseline";
     rev = "95a0b71806ed16310eb0f27bc48aa5e21f731423";
-    sha256 = "0qjg46ipyfjflvjqzqr5p7iylwwqn2mhhrq952d01vi8wvfds10d";
+    hash = "sha256-DQTd3OYo7gCaKAlnCKuwmHPq47kl44/lpk46f6MhT2I=";
   };
 
+  build-system = [ setuptools ];
+
   nativeCheckInputs = [ pytestCheckHook ];
 
+  pythonImportsCheck = [ "baseline" ];
+
   meta = {
     description = "Easy String Baseline";
     mainProgram = "baseline";