diff --git a/system/Entity/Entity.php b/system/Entity/Entity.php
index 5de8a42187a4..464992af6251 100644
--- a/system/Entity/Entity.php
+++ b/system/Entity/Entity.php
@@ -106,7 +106,7 @@ class Entity implements JsonSerializable
     /**
      * Holds the current values of all class vars.
      *
-     * @var array
+     * @var array<string, mixed>
      */
     protected $attributes = [];
 
@@ -115,7 +115,7 @@ class Entity implements JsonSerializable
      * what's actually been changed and not accidentally write
      * nulls where we shouldn't.
      *
-     * @var array
+     * @var array<string, mixed>
      */
     protected $original = [];