diff --git a/system/CodeIgniter.php b/system/CodeIgniter.php
index 2a777474c56e..5f51a2e175a5 100644
--- a/system/CodeIgniter.php
+++ b/system/CodeIgniter.php
@@ -732,7 +732,7 @@ public static function cache(int $time)
      * Caches the full response from the current request. Used for
      * full-page caching for very high performance.
      *
-     * @return mixed
+     * @return bool
      */
     public function cachePage(Cache $config)
     {
@@ -918,7 +918,7 @@ protected function createController()
      *  2. PHP CLI: accessed by CLI via php public/index.php, arguments become URI segments,
      *      sent to Controllers via Routes, output varies
      *
-     * @param mixed $class
+     * @param Controller $class
      *
      * @return false|ResponseInterface|string|void
      */