diff --git a/pkgs/development/python-modules/mkdocstrings/default.nix b/pkgs/development/python-modules/mkdocstrings/default.nix
index b47f00fb6346..b09b819d3317 100644
--- a/pkgs/development/python-modules/mkdocstrings/default.nix
+++ b/pkgs/development/python-modules/mkdocstrings/default.nix
@@ -30,14 +30,14 @@ buildPythonPackage rec {
 
   postPatch = ''
     substituteInPlace pyproject.toml \
-      --replace 'dynamic = ["version"]' 'version = "${version}"'
+      --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
   '';
 
-  nativeBuildInputs = [
+  build-system = [
     pdm-backend
   ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     jinja2
     markdown
     markupsafe