diff --git a/pkgs/development/python-modules/mailmanclient/default.nix b/pkgs/development/python-modules/mailmanclient/default.nix
index b15cd1ab25e7..b00661f89d09 100644
--- a/pkgs/development/python-modules/mailmanclient/default.nix
+++ b/pkgs/development/python-modules/mailmanclient/default.nix
@@ -2,9 +2,7 @@
   lib,
   buildPythonPackage,
   fetchPypi,
-  pythonOlder,
   requests,
-  typing-extensions,
 }:
 
 buildPythonPackage rec {
@@ -17,7 +15,7 @@ buildPythonPackage rec {
     hash = "sha256-Y1gcYEyn6sAhSJwVqsygaklY63b2ZXTG+rBerGVN2Fc=";
   };
 
-  propagatedBuildInputs = [ requests ] ++ lib.optionals (pythonOlder "3.8") [ typing-extensions ];
+  propagatedBuildInputs = [ requests ];
 
   # Tests require a running Mailman instance
   doCheck = false;