diff --git a/pkgs/development/python-modules/simanneal/default.nix b/pkgs/development/python-modules/simanneal/default.nix
index ebface191aaf..2cdbf44c10d5 100644
--- a/pkgs/development/python-modules/simanneal/default.nix
+++ b/pkgs/development/python-modules/simanneal/default.nix
@@ -2,23 +2,29 @@
   lib,
   fetchFromGitHub,
   buildPythonPackage,
-  pytest,
+  setuptools,
+  pytestCheckHook,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "simanneal";
   version = "0.5.0";
-  format = "setuptools";
+  pyproject = true;
+
+  __structuredAttrs = true;
 
   src = fetchFromGitHub {
     owner = "perrygeo";
     repo = "simanneal";
-    rev = version;
+    tag = finalAttrs.version;
     hash = "sha256-yKZHkrf6fM0WsHczIEK5Kxusz5dSBgydK3fLu1nDyvk=";
   };
 
-  nativeCheckInputs = [ pytest ];
-  checkPhase = "pytest tests";
+  build-system = [ setuptools ];
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "simanneal" ];
 
   meta = {
     description = "Python implementation of the simulated annealing optimization technique";
@@ -26,4 +32,4 @@ buildPythonPackage rec {
     license = lib.licenses.isc;
     maintainers = with lib.maintainers; [ veprbl ];
   };
-}
+})