diff --git a/src/wp-admin/update-core.php b/src/wp-admin/update-core.php
index 25dea0a291..b362ef2b3a 100644
--- a/src/wp-admin/update-core.php
+++ b/src/wp-admin/update-core.php
@@ -402,7 +402,7 @@ function core_auto_updates_settings() {
 			_e( 'This site is automatically kept up to date with each new version of WordPress.' );
 
 			if ( $can_set_update_option ) {
-				echo '<br>';
+				echo '<br />';
 				printf(
 					'<a href="%s" class="core-auto-update-settings-link core-auto-update-settings-link-disable">%s</a>',
 					wp_nonce_url( add_query_arg( 'value', 'disable', $action_url ), 'core-major-auto-updates-nonce' ),
@@ -413,7 +413,7 @@ function core_auto_updates_settings() {
 			_e( 'This site is automatically kept up to date with maintenance and security releases of WordPress only.' );
 
 			if ( $can_set_update_option ) {
-				echo '<br>';
+				echo '<br />';
 				printf(
 					'<a href="%s" class="core-auto-update-settings-link core-auto-update-settings-link-enable">%s</a>',
 					wp_nonce_url( add_query_arg( 'value', 'enable', $action_url ), 'core-major-auto-updates-nonce' ),
@@ -535,7 +535,7 @@ function list_plugin_updates() {
 		$compatible_php = is_php_version_compatible( $requires_php );
 
 		if ( ! $compatible_php && current_user_can( 'update_php' ) ) {
-			$compat .= '<br>' . __( 'This update does not work with your version of PHP.' ) . '&nbsp;';
+			$compat .= '<br />' . __( 'This update does not work with your version of PHP.' ) . '&nbsp;';
 			$compat .= sprintf(
 				/* translators: %s: URL to Update PHP page. */
 				__( '<a href="%s">Learn more about updating PHP</a>.' ),
@@ -681,7 +681,7 @@ function list_theme_updates() {
 		$compat = '';
 
 		if ( ! $compatible_wp && ! $compatible_php ) {
-			$compat .= '<br>' . __( 'This update does not work with your versions of WordPress and PHP.' ) . '&nbsp;';
+			$compat .= '<br />' . __( 'This update does not work with your versions of WordPress and PHP.' ) . '&nbsp;';
 			if ( current_user_can( 'update_core' ) && current_user_can( 'update_php' ) ) {
 				$compat .= sprintf(
 					/* translators: 1: URL to WordPress Updates screen, 2: URL to Update PHP page. */
@@ -715,7 +715,7 @@ function list_theme_updates() {
 				}
 			}
 		} elseif ( ! $compatible_wp ) {
-			$compat .= '<br>' . __( 'This update does not work with your version of WordPress.' ) . '&nbsp;';
+			$compat .= '<br />' . __( 'This update does not work with your version of WordPress.' ) . '&nbsp;';
 			if ( current_user_can( 'update_core' ) ) {
 				$compat .= sprintf(
 					/* translators: %s: URL to WordPress Updates screen. */
@@ -724,7 +724,7 @@ function list_theme_updates() {
 				);
 			}
 		} elseif ( ! $compatible_php ) {
-			$compat .= '<br>' . __( 'This update does not work with your version of PHP.' ) . '&nbsp;';
+			$compat .= '<br />' . __( 'This update does not work with your version of PHP.' ) . '&nbsp;';
 			if ( current_user_can( 'update_php' ) ) {
 				$compat .= sprintf(
 					/* translators: %s: URL to Update PHP page. */