diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index 83a6a25..badb347 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -7,6 +7,7 @@
 
 use Drupal\Component\Utility\Crypt;
 use Drupal\Component\Utility\Environment;
+use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Url;
 use Drupal\Core\Database\Database;
 use Drupal\Core\DrupalKernel;
@@ -137,9 +138,7 @@ function system_requirements($phase) {
   if (function_exists('phpinfo')) {
     // $phpversion is safe and output of l() is safe, so this value is safe.
     if ($phase === 'runtime') {
-      $phpversion_label = [
-        '#markup' => $phpversion . ' (' . \Drupal::l(t('more information'), new Url('system.php')) . ')',
-      ];
+      $phpversion_label = SafeMarkup::set($phpversion . ' (' . \Drupal::l(t('more information'), new Url('system.php')) . ')');
     }
     $requirements['php'] = array(
       'title' => t('PHP'),