diff --git a/pkgs/development/python-modules/pymediainfo/default.nix b/pkgs/development/python-modules/pymediainfo/default.nix
index 248e84394bcf..d19432cc46b5 100644
--- a/pkgs/development/python-modules/pymediainfo/default.nix
+++ b/pkgs/development/python-modules/pymediainfo/default.nix
@@ -4,7 +4,7 @@
   fetchPypi,
   buildPythonPackage,
   libmediainfo,
-  setuptools-scm,
+  pdm-backend,
   pytest,
   pythonOlder,
 }:
@@ -12,9 +12,9 @@
 buildPythonPackage rec {
   pname = "pymediainfo";
   version = "7.0.1";
-  format = "setuptools";
+  pyproject = true;
 
-  disabled = pythonOlder "3.7";
+  disabled = pythonOlder "3.9";
 
   src = fetchPypi {
     inherit pname version;
@@ -22,7 +22,7 @@ buildPythonPackage rec {
   };
 
   postPatch = ''
-    substituteInPlace pymediainfo/__init__.py \
+    substituteInPlace src/pymediainfo/__init__.py \
       --replace "libmediainfo.0.dylib" \
                 "${libmediainfo}/lib/libmediainfo.0${stdenv.hostPlatform.extensions.sharedLibrary}" \
       --replace "libmediainfo.dylib" \
@@ -31,7 +31,7 @@ buildPythonPackage rec {
                 "${libmediainfo}/lib/libmediainfo${stdenv.hostPlatform.extensions.sharedLibrary}.0"
   '';
 
-  nativeBuildInputs = [ setuptools-scm ];
+  build-system = [ pdm-backend ];
 
   nativeCheckInputs = [
     pytest