diff --git a/pkgs/by-name/or/or-tools/package.nix b/pkgs/by-name/or/or-tools/package.nix
index 254ea0faadc4..c2f7071a90fe 100644
--- a/pkgs/by-name/or/or-tools/package.nix
+++ b/pkgs/by-name/or/or-tools/package.nix
@@ -43,7 +43,6 @@ let
       ninja
       numpy
       pytestCheckHook
-      pythonOlder
       setuptools
       ;
     python = python3;
diff --git a/pkgs/by-name/or/or-tools/pybind11-2.13.6.nix b/pkgs/by-name/or/or-tools/pybind11-2.13.6.nix
index 048ed89f5632..0ba3cd381c66 100644
--- a/pkgs/by-name/or/or-tools/pybind11-2.13.6.nix
+++ b/pkgs/by-name/or/or-tools/pybind11-2.13.6.nix
@@ -5,7 +5,6 @@
   stdenv,
   lib,
   buildPythonPackage,
-  pythonOlder,
   fetchFromGitHub,
   cmake,
   ninja,
@@ -16,7 +15,6 @@
   catch2,
   numpy,
   pytestCheckHook,
-  libxcrypt,
   makeSetupHook,
 }:
 let
@@ -51,7 +49,6 @@ buildPythonPackage rec {
     setuptools
   ];
 
-  buildInputs = lib.optionals (pythonOlder "3.9") [ libxcrypt ];
   propagatedNativeBuildInputs = [ setupHook ];
 
   dontUseCmakeBuildDir = true;