{...}: final: prev: {
  xorg =
    prev.xorg
    // {
      xorgserver = assert (prev.xorg.xorgserver.version == "21.1.13");
        prev.xorg.xorgserver.overrideAttrs {
          version = "21.1.14";
          src = final.fetchurl {
            url = "mirror://xorg/individual/xserver/xorg-server-21.1.14.tar.xz";
            sha256 = "sha256-jyECzr3EdH0WVsEJnvYQ9QY8dCLCShd+MA3labNU7jU=";
          };
        };
    };
}