Index: src/wp-admin/css/common.css
===================================================================
--- src/wp-admin/css/common.css	(revision 35197)
+++ src/wp-admin/css/common.css	(working copy)
@@ -337,6 +337,8 @@
 	margin: 1em 0;
 }
 
+.update-php h2,
+.update-core-php h2,
 h4 {
 	font-size: 1em;
 	margin: 1.33em 0;
Index: src/wp-admin/includes/class-wp-upgrader-skins.php
===================================================================
--- src/wp-admin/includes/class-wp-upgrader-skins.php	(revision 35197)
+++ src/wp-admin/includes/class-wp-upgrader-skins.php	(working copy)
@@ -369,7 +369,7 @@
 	 */
 	public function before($title = '') {
 		$this->in_loop = true;
-		printf( '<h4>' . $this->upgrader->strings['skin_before_update_header'] . ' <span class="spinner waiting-' . $this->upgrader->update_current . '"></span></h4>',  $title, $this->upgrader->update_current, $this->upgrader->update_count);
+		printf( '<h2>' . $this->upgrader->strings['skin_before_update_header'] . ' <span class="spinner waiting-' . $this->upgrader->update_current . '"></span></h2>', $title, $this->upgrader->update_current, $this->upgrader->update_count );
 		echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js($this->upgrader->update_current) . '\').css("display", "inline-block");</script>';
 		echo '<div class="update-messages hide-if-js" id="progress-' . esc_attr($this->upgrader->update_current) . '"><p>';
 		$this->flush_output();
@@ -805,7 +805,7 @@
 
 		echo '<div class="update-messages lp-show-latest">';
 
-		printf( '<h4>' . __( 'Updating translations for %1$s (%2$s)&#8230;' ) . '</h4>', $name, $this->language_update->language );
+		printf( '<h2>' . __( 'Updating translations for %1$s (%2$s)&#8230;' ) . '</h2>', $name, $this->language_update->language );
 	}
 
 	/**