$(window).load(function() {
  setTimeout(function()  {
    var submitBtn = $('.wrapper .hs-form .actions > input[type="submit"]');
    submitBtn.parent().html(submitBtn.parent().html().replace(/input/g,"button"));
    $('.wrapper .hs-form .actions > button[type="submit"]').text(submitBtn.attr('value'));
  }, 100);
});