Jetpack Twitter Widget | Passing new args

I am using the_widget to display the twitter widget in a page. I can call the widget and pass new args like title but I am having trouble changing from the default h2 before_title arg to h5

<?php
                                            $args = array(
                                                'account' => 'woodleighventrs',
                                                'title' => 'Recent Tweets',
                                                'show' => '5',
                                                'before_widget' => '',
                                                'after_widget' => '',
                                                'before_title' => '<h5>',
                                                'after_title' => '</h5>'
                                                )
                                        ?>
                                        <p><?php the_widget('Jetpack_Widget_Twitter', $args) ; ?></p>

For some reason the title still displays as h2 and not h5.

Thanks in advance for your reply,
Craig