How to change “Add to cart” Label in WooCommerce

$new_label= "your new label";
add_filter('woocommerce_single_add_to_cart_text','xyz1289_change_single_add_to_cart',10,1);

add_filter('woocommerce_product_add_to_cart_text','xyz1289_add_to_cart',10);

function xyz1289_add_to_cart(){

	return $new_label;
}
function xyz1289_change_single_add_to_cart($gplswrfq_button_text){

	return $new_label;
}