Was just about to ask the same question 🙂
I managed to do it using the following code:
function my_acf_load_value( $value, $post_id, $field ) {
$value = get_the_title();
return $value;
}
add_filter('acf/load_value/name=FIELD_NAME', 'my_acf_load_value', 10, 3);