diff --git a/pkgs/development/python-modules/mdformat/default.nix b/pkgs/development/python-modules/mdformat/default.nix
index 28df80388d87..29f62b9f6893 100644
--- a/pkgs/development/python-modules/mdformat/default.nix
+++ b/pkgs/development/python-modules/mdformat/default.nix
@@ -12,7 +12,7 @@
 
 buildPythonPackage rec {
   pname = "mdformat";
-  version = "0.7.17";
+  version = "0.7.18";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -21,12 +21,12 @@ buildPythonPackage rec {
     owner = "executablebooks";
     repo = "mdformat";
     rev = "refs/tags/${version}";
-    hash = "sha256-umtfbhN6sDR/rFr1LwmJ21Ph9bK1Qq43bmMVzGCPD5s=";
+    hash = "sha256-t2yx8cIq8es3XOc2nbHPKjUUium5+RPZuD8oNWZxVV0=";
   };
 
-  nativeBuildInputs = [ setuptools ];
+  build-system = [ setuptools ];
 
-  propagatedBuildInputs =
+  dependencies =
     [ markdown-it-py ]
     ++ lib.optionals (pythonOlder "3.11") [ tomli ]
     ++ lib.optionals (pythonOlder "3.10") [ importlib-metadata ];