diff --git a/pkgs/development/python-modules/pluthon/default.nix b/pkgs/development/python-modules/pluthon/default.nix
index aae077325b35..328d6272f3ad 100644
--- a/pkgs/development/python-modules/pluthon/default.nix
+++ b/pkgs/development/python-modules/pluthon/default.nix
@@ -3,10 +3,8 @@
   fetchFromGitHub,
   buildPythonPackage,
   setuptools,
-  pythonOlder,
   # Python deps
   uplc,
-  graphlib-backport,
   ordered-set,
 }:
 
@@ -27,8 +25,7 @@ buildPythonPackage rec {
     setuptools
     uplc
     ordered-set
-  ]
-  ++ lib.optional (pythonOlder "3.9") graphlib-backport;
+  ];
 
   pythonImportsCheck = [ "pluthon" ];