Pagination not Working with WP_Query

<?php get_header(); ?>
    <div class="row">
        <div class="large-4 columns">
            <?php get_sidebar(); ?>
        </div>
        <div class="large-8 columns">
            <h4>Últimas notícias</h4>
            <ul class="no-bullet">
                <?php
                    $args = array (
                    'category_name'          => 'noticias',
                    'pagination'             => true,
                    'posts_per_page'         => '5',
                    );

                    $query = new WP_Query( $args );

                    // Loop
                    if ( $query->have_posts() ) {
                        while ( $query->have_posts() ) { $query->the_post();
                ?>

                        <li class="panel">
                            <h5>
                                <a href="<?php the_permalink();?>"><?php the_title() ?>
                            </h5>
                            <p class="post-info"><?php the_time('F j, Y'); ?> | Por <a href="<?php echo get_author_posts_url(get_the_author_meta('ID')); ?>"><?php the_author(); ?></a> | Postado em
                                <?php
                                    $categories = get_the_category();
                                    $separator = ", ";
                                    $output = '';
                                    if ($categories) {
                                        foreach ($categories as $category) {
                                            $output .= '<a href="' . get_category_link($category -> term_id) . '">' . $category -> cat_name . '</a>' . $separator;
                                        }
                                        echo trim($output, $separator);
                                    }
                                ?>
                            </p>
                            <hr />
                            <p> <?php the_excerpt() ?>  </p>

                            <a href="<?php the_permalink();?>" class="button radius">Ver notícia completa</a>
                        </li>
                    <!-- End of the Loop -->
                        <li>
                            <ul>
                                <li><?php next_posts_link( 'Older posts' ); ?></li>
                                <li><?php previous_posts_link( 'Newer posts' ); ?></li>
                            </ul>
                        </li>
                    <?php   }   } else {    ?>

                        <h5>Não foi encontrado o conteúdo desejado!</h5>
                    <?php   }   wp_reset_postdata();    ?>
            </ul>
        </div>
    </div>
<?php get_footer(); ?>