diff --git a/src/wp-content/themes/twentytwentyone/footer.php b/src/wp-content/themes/twentytwentyone/footer.php
index b0c26e4fe6..08a0c2524f 100644
--- a/src/wp-content/themes/twentytwentyone/footer.php
+++ b/src/wp-content/themes/twentytwentyone/footer.php
@@ -13,7 +13,7 @@
 
 ?>
 			</main><!-- #main -->
-		</section><!-- #primary -->
+		</div><!-- #primary -->
 	</div><!-- #content -->
 
 	<?php get_template_part( 'template-parts/footer/footer-widgets' ); ?>
diff --git a/src/wp-content/themes/twentytwentyone/header.php b/src/wp-content/themes/twentytwentyone/header.php
index 9f0433a43a..d627de453c 100644
--- a/src/wp-content/themes/twentytwentyone/header.php
+++ b/src/wp-content/themes/twentytwentyone/header.php
@@ -28,5 +28,5 @@
 	<?php get_template_part( 'template-parts/header/site-header' ); ?>
 
 	<div id="content" class="site-content">
-		<section id="primary" class="content-area">
+		<div id="primary" class="content-area">
 			<main id="main" class="site-main" role="main">