diff --git a/src/setup.php b/src/setup.php
index 8d9c3a5..414c0cd 100644
--- a/src/setup.php
+++ b/src/setup.php
@@ -28,13 +28,13 @@ add_action('after_setup_theme', function () {
 
     /**
      * Enable plugins to manage the document title
-     * @link http://codex.wordpress.org/Function_Reference/add_theme_support#Title_Tag
+     * @link https://developer.wordpress.org/reference/functions/add_theme_support/#title-tag
      */
     add_theme_support('title-tag');
 
     /**
      * Register navigation menus
-     * @link http://codex.wordpress.org/Function_Reference/register_nav_menus
+     * @link https://developer.wordpress.org/reference/functions/register_nav_menus/
      */
     register_nav_menus([
         'primary_navigation' => __('Primary Navigation', 'sage')
@@ -42,15 +42,13 @@ add_action('after_setup_theme', function () {
 
     /**
      * Enable post thumbnails
-     * @link http://codex.wordpress.org/Post_Thumbnails
-     * @link http://codex.wordpress.org/Function_Reference/set_post_thumbnail_size
-     * @link http://codex.wordpress.org/Function_Reference/add_image_size
+     * @link https://developer.wordpress.org/themes/functionality/featured-images-post-thumbnails/
      */
     add_theme_support('post-thumbnails');
 
     /**
      * Enable HTML5 markup support
-     * @link http://codex.wordpress.org/Function_Reference/add_theme_support#HTML5
+     * @link https://developer.wordpress.org/reference/functions/add_theme_support/#html5
      */
     add_theme_support('html5', ['caption', 'comment-form', 'comment-list', 'gallery', 'search-form']);