diff --git a/pkgs/development/python-modules/ed25519/default.nix b/pkgs/development/python-modules/ed25519/default.nix
index 7b2c20c39a04..745c2c38cd0d 100644
--- a/pkgs/development/python-modules/ed25519/default.nix
+++ b/pkgs/development/python-modules/ed25519/default.nix
@@ -1,10 +1,13 @@
-{ lib, fetchPypi, buildPythonPackage }:
+{ lib, fetchPypi, buildPythonPackage, pythonAtLeast }:
 
 buildPythonPackage rec {
   pname = "ed25519";
   version = "1.5";
   format = "setuptools";
 
+  # last commit in 2019, various compat issues with 3.12
+  disabled = pythonAtLeast "3.12";
+
   src = fetchPypi {
     inherit pname version;
     sha256 = "0n1k83ww0pr4q6z0h7p8hvy21hcgb96jvgllfbwhvvyf37h3w182";