diff --git a/pkgs/development/python-modules/tomli-w/default.nix b/pkgs/development/python-modules/tomli-w/default.nix
index 3741f4e2881e..618d0bb8c174 100644
--- a/pkgs/development/python-modules/tomli-w/default.nix
+++ b/pkgs/development/python-modules/tomli-w/default.nix
@@ -3,27 +3,35 @@
   buildPythonPackage,
   fetchFromGitHub,
   flit-core,
+  pytestCheckHook,
+  tomli,
 }:
 
 buildPythonPackage rec {
   pname = "tomli-w";
-  version = "1.0.0";
-  format = "pyproject";
+  version = "1.2.0";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "hukkin";
-    repo = pname;
-    rev = version;
-    hash = "sha256-wZSC5uOi1JUeKXIli1I8/Vo0wGsv9Q1I84dAMQQP95w=";
+    repo = "tomli-w";
+    tag = version;
+    hash = "sha256-Du37ySvAL9iwGec5wbWxwLTYm+kcDSOs5OJ5Sw7R87g=";
   };
 
-  nativeBuildInputs = [ flit-core ];
+  build-system = [ flit-core ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+    tomli
+  ];
 
   pythonImportsCheck = [ "tomli_w" ];
 
   meta = with lib; {
     description = "Write-only counterpart to Tomli, which is a read-only TOML parser";
     homepage = "https://github.com/hukkin/tomli-w";
+    changelog = "https://github.com/hukkin/tomli-w/blob/${src.tag}/CHANGELOG.md";
     license = licenses.mit;
     maintainers = with maintainers; [ lovesegfault ];
   };