diff --git a/core/modules/ckeditor/src/Plugin/CKEditorPlugin/Language.php b/core/modules/ckeditor/src/Plugin/CKEditorPlugin/Language.php
index 145f741..6fad793 100644
--- a/core/modules/ckeditor/src/Plugin/CKEditorPlugin/Language.php
+++ b/core/modules/ckeditor/src/Plugin/CKEditorPlugin/Language.php
@@ -114,8 +114,8 @@ public function settingsForm(array $form, FormStateInterface $form_state, Editor
         'all' => $this->t('All @count languages', ['@count' => count($predefined_languages)]),
       ],
       '#default_value' => $config['language_list'],
-      '#description' => $this->t('The list of languages to show in the language dropdown. The basic list will only show the <a href=":url">six official languages of the UN</a>. The extended list will show all @count languages that are available in Drupal.', [
-        ':url' => Url::fromUri('http://www.un.org/en/aboutun/languages.shtml/')->toString(),
+      '#description' => $this->t('The list of languages to show in the language dropdown. The basic list will only show the <a href=":url">six official languages of the UN (wikipedia list)</a>. The extended list will show all @count languages that are available in Drupal.', [
+        ':url' => 'https://en.wikipedia.org/wiki/Official_languages_of_the_United_Nations',
         '@count' => count($predefined_languages),
       ]),
       '#attached' => ['library' => ['ckeditor/drupal.ckeditor.language.admin']],