diff --git a/pkgs/development/python-modules/mailman-hyperkitty/default.nix b/pkgs/development/python-modules/mailman-hyperkitty/default.nix
index 2d3ec976d64b..649d8d4cf3df 100644
--- a/pkgs/development/python-modules/mailman-hyperkitty/default.nix
+++ b/pkgs/development/python-modules/mailman-hyperkitty/default.nix
@@ -5,6 +5,7 @@
 , mock
 , nose2
 , python
+, pythonOlder
 , requests
 , zope_interface
 }:
@@ -14,6 +15,8 @@ buildPythonPackage rec {
   version = "1.1.0";
   format = "setuptools";
 
+  disabled = pythonOlder "3.9";
+
   src = fetchPypi {
     inherit pname version;
     sha256 = "1lfqa9admhvdv71f528jmz2wl0i5cv77v6l64px2pm4zqr9ckkjx";