diff --git a/pkgs/development/python-modules/pyserial-asyncio-fast/default.nix b/pkgs/development/python-modules/pyserial-asyncio-fast/default.nix
index 99940e26d627..f8a1c4c8c780 100644
--- a/pkgs/development/python-modules/pyserial-asyncio-fast/default.nix
+++ b/pkgs/development/python-modules/pyserial-asyncio-fast/default.nix
@@ -2,6 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  pythonAtLeast,
 
   # build-system
   setuptools,
@@ -19,6 +20,9 @@ buildPythonPackage rec {
   version = "0.16";
   pyproject = true;
 
+  # https://github.com/home-assistant-libs/pyserial-asyncio-fast/pull/37
+  disabled = pythonAtLeast "3.14";
+
   src = fetchFromGitHub {
     owner = "bdraco";
     repo = "pyserial-asyncio-fast";