diff --git a/functions.php b/functions.php
index 386e651..b145853 100644
--- a/functions.php
+++ b/functions.php
@@ -255,24 +255,6 @@
 		echo '</span>';
 	}
 
-	/**
-	 * Prints HTML with meta information about theme author.
-	 *
-	 * @since Twenty Twenty-One 1.0
-	 *
-	 * @return void
-	 */
-	function twenty_twenty_one_posted_by() {
-		if ( ! get_the_author_meta( 'description' ) && post_type_supports( get_post_type(), 'author' ) ) {
-			echo '<span class="byline p-author h-card">';
-			printf(
-				/* translators: %s: Author name. */
-				esc_html__( 'By %s', 'twentytwentyone' ),
-				'<a href="' . esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ) . '" rel="author">' . esc_html( get_the_author() ) . '</a>'
-			);
-			echo '</span>';
-		}
-	}
 	add_filter( 'twenty_twenty_one_social_icons_map', 'degruchy_twenty_twenty_one_social_icons_map' );
 	add_filter( 'twenty_twenty_one_svg_icons_social', 'degruchy_twenty_twenty_one_svg_icons_social' );
 	add_filter( 'get_the_archive_title', 'degruchy_org_disable_archive_prefix' );
diff --git a/template-parts/post/author-bio.php b/template-parts/post/author-bio.php
index 0aac23c..76bd406 100644
--- a/template-parts/post/author-bio.php
+++ b/template-parts/post/author-bio.php
@@ -13,7 +13,7 @@ $avatarargs = array(
 
 ?>
 <?php if ( (bool) get_the_author_meta( 'description' ) && post_type_supports( get_post_type(), 'author' ) ) : ?>
-	<div class="author-bio h-card <?php echo get_option( 'show_avatars' ) ? 'show-avatars' : ''; ?>">
+	<div rel="author" class="author-bio h-card <?php echo get_option( 'show_avatars' ) ? 'show-avatars' : ''; ?>">
 		<?php echo get_avatar( get_the_author_meta( 'ID' ), 85, 'mm', '', $avatarargs ); ?>
 		<div class="author-bio-content">
 			<h2 class="author-title p-name">