diff --git a/wp-content/themes/twentyfifteen/functions.php b/wp-content/themes/twentyfifteen/functions.php
index d47db9eb50..189a15cde9 100644
--- a/wp-content/themes/twentyfifteen/functions.php
+++ b/wp-content/themes/twentyfifteen/functions.php
@@ -549,13 +549,14 @@ function twentyfifteen_author_bio_template( $template ) {
 	if ( is_author() ) {
 		$author = get_queried_object();
 		if ( $author instanceof WP_User && 'bio' === $author->user_nicename ) {
-			return locate_template( array( 'archive.php', 'index.php' ) );
+			// Use author templates if exist, fall back to template hierarchy otherwise.
+			return locate_template( array( "author-{$author->ID}.php", 'author.php' ) );
 		}
 	}
 
 	return $template;
 }
-add_filter( 'template_include', 'twentyfifteen_author_bio_template' );
+add_filter( 'author_template', 'twentyfifteen_author_bio_template' );
 
 
 /**
diff --git a/wp-includes/version.php b/wp-includes/version.php
index f1c66b4d0d..86c54cba7e 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-45719';
+$wp_version = '5.3-alpha-45720';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.