Pagination not working

I created an page, in which I want to include certain categorie posts. I used a template for this page and this is the loop:

<?php query_posts('cat=4,6,5,81,3,9&posts_per_page=30'); ?>
		<?php while (have_posts()) : the_post(); ?>
		<div class="bericht meta">
			<h2><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>
			<div class="content">
				<span class="post-meta">Door: <?php the_author_posts_link(); ?> - <?php the_time('j F Y') ?> om <?php the_time() ?><?php edit_post_link('Edit', ' | ', ""); ?><br />Categorie: <?php the_category('| ') ?><?php get_category_link() ?></span>
			</div><!-- content -->
			<div class="clear"></div>
		</div><!-- bericht -->
		  <?php endwhile; ?>
		  <?php wp_pagenavi(); ?>

So when I click on the pagination (called using a plugin), the url changes to url/page/2/. The problem is that it still displays the (same) first 30 posts…