Simple Catch Pro update date instead of published date

/**
 * Display the page/post loop part
 * @since Simple Catch Pro 1.3.2
 */
function simplecatch_loop() {

    if ( is_page() ): ?>

        <section <?php post_class(); ?> >
            <header class="entry-header">
                <h1 class="entry-title"><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php echo esc_attr( get_the_title() ); ?>"><?php the_title(); ?></a></h1>
            </header>
            <div class="entry-content clearfix">
                <?php the_content();
                // copy this <!--nextpage--> and paste at the post content where you want to break the page
                 wp_link_pages(array(
                        'before'            => '<div class="pagination">Pages: ',
                        'after'             => '</div>',
                        'link_before'       => '<span>',
                        'link_after'        => '</span>',
                        'pagelink'          => '%',
                        'echo'              => 1
                ) ); ?>
            </div>
        </section><!-- .post -->

    <?php elseif ( is_single() ): ?>

        <section <?php post_class(); ?>>
            <header class="entry-header">
                <h1 class="entry-title"><a href="<?php the_permalink(); ?>" rel="bookmark" title="<?php echo esc_attr( get_the_title() ); ?>"><?php the_title(); ?></a></h1>
                <div class="entry-meta">
                    <ul class="clearfix">
                        <li class="no-padding-left author vcard"><a class="url fn n" href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) ); ?>" title="<?php echo esc_attr(get_the_author_meta( 'display_name' ) ); ?>" rel="author"><?php _e( 'By', 'simple-catch-pro' ); ?>&nbsp;<?php the_author_meta( 'display_name' );?></a></li>
                        <li class="entry-date updated"><?php echo get_the_modified_date(); ?></li>
                        <li><?php comments_popup_link( __( 'No Comments', 'simple-catch-pro' ), __( '1 Comment', 'simple-catch-pro' ), __( '% Comments', 'simple-catch-pro' ) ); ?></li>
                    </ul>
                </div>
            </header>
            <div class="entry-content clearfix">
                <?php the_content();
                // copy this <!--nextpage--> and paste at the post content where you want to break the page
                 wp_link_pages(array(
                        'before'            => '<div class="pagination">Pages: ',
                        'after'             => '</div>',
                        'link_before'       => '<span>',
                        'link_after'        => '</span>',
                        'pagelink'          => '%',
                        'echo'              => 1
                    ) );
                ?>
            </div>
            <footer class="entry-meta">
                <?php
                $tag = get_the_tags();
                if (! $tag ) { ?>
                    <div class='tags'><?php _e( 'Categories: ', 'simple-catch-pro' ); ?> <?php the_category(', '); ?> </div>
                <?php } else {
                    the_tags( '<div class="tags"> ' . __('Tags', 'simple-catch-pro') . ': ', ', ', '</div>');
                } ?>
            </footer>
        </section> <!-- .post -->

    <?php endif;
} // simplecatch_loop