diff --git a/src/wp-content/themes/twentytwentyone/inc/template-tags.php b/src/wp-content/themes/twentytwentyone/inc/template-tags.php
index faa7e495da..38add801c5 100644
--- a/src/wp-content/themes/twentytwentyone/inc/template-tags.php
+++ b/src/wp-content/themes/twentytwentyone/inc/template-tags.php
@@ -190,8 +190,8 @@ if ( ! function_exists( 'twenty_twenty_one_post_thumbnail' ) ) {
 
 			<figure class="post-thumbnail">
 				<?php
-				// Thumbnail is loaded eagerly because it's going to be in the viewport immediately.
-				the_post_thumbnail( 'post-thumbnail', array( 'loading' => 'eager' ) );
+				// Lazy-loading attributes should be skipped for thumbnails since they are immediately in the viewport.
+				the_post_thumbnail( 'post-thumbnail', array( 'loading' => false ) );
 				?>
 				<?php if ( wp_get_attachment_caption( get_post_thumbnail_id() ) ) : ?>
 					<figcaption class="wp-caption-text"><?php echo wp_kses_post( wp_get_attachment_caption( get_post_thumbnail_id() ) ); ?></figcaption>