diff --git a/pkgs/development/python-modules/pyamg/default.nix b/pkgs/development/python-modules/pyamg/default.nix
index 4a00b7de772b..30f5bbd699cb 100644
--- a/pkgs/development/python-modules/pyamg/default.nix
+++ b/pkgs/development/python-modules/pyamg/default.nix
@@ -1,5 +1,6 @@
 {
   lib,
+  stdenv,
   buildPythonPackage,
   fetchPypi,
   numpy,
@@ -20,6 +21,14 @@ buildPythonPackage rec {
     hash = "sha256-UyPQ8aTNmZviRqkNWAyeHptYS5iIf2KY05dhEIfvhgs=";
   };
 
+  # removed by next version, https://github.com/pyamg/pyamg/pull/420
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace-fail \
+        'setuptools_scm[toml]==8.3.0' \
+        'setuptools_scm>=8.3.0' \
+  '';
+
   nativeBuildInputs = [ setuptools-scm ];
 
   propagatedBuildInputs = [
@@ -51,5 +60,6 @@ buildPythonPackage rec {
     changelog = "https://github.com/pyamg/pyamg/blob/v${version}/changelog.md";
     license = lib.licenses.mit;
     maintainers = [ ];
+    broken = stdenv.hostPlatform.isDarwin && lib.versionAtLeast python.version "3.14";
   };
 }