diff --git a/pkgs/development/python-modules/mkdocs-autorefs/default.nix b/pkgs/development/python-modules/mkdocs-autorefs/default.nix
index 15f846ad4745..1a0b64efe1e1 100644
--- a/pkgs/development/python-modules/mkdocs-autorefs/default.nix
+++ b/pkgs/development/python-modules/mkdocs-autorefs/default.nix
@@ -4,7 +4,7 @@
 , markdown
 , mkdocs
 , pytestCheckHook
-, pdm-pep517
+, pdm-backend
 , pythonOlder
 }:
 
@@ -13,7 +13,7 @@ buildPythonPackage rec {
   version = "0.5.0";
   format = "pyproject";
 
-  disabled = pythonOlder "3.7";
+  disabled = pythonOlder "3.8";
 
   src = fetchFromGitHub {
     owner = "mkdocstrings";
@@ -22,8 +22,13 @@ buildPythonPackage rec {
     hash = "sha256-GZKQlOXhQIQhS/z4cbmS6fhAKYgnVhSXh5a8Od7+TWc=";
   };
 
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace 'dynamic = ["version"]' 'version = "${version}"'
+  '';
+
   nativeBuildInputs = [
-    pdm-pep517
+    pdm-backend
   ];
 
   propagatedBuildInputs = [
@@ -35,11 +40,6 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
-  postPatch = ''
-    substituteInPlace pyproject.toml \
-      --replace 'dynamic = ["version"]' 'version = "${version}"'
-  '';
-
   pythonImportsCheck = [
     "mkdocs_autorefs"
   ];