diff --git a/Models/Report.php b/Models/Report.php
index b2d7c71..081ae16 100755
--- a/Models/Report.php
+++ b/Models/Report.php
@@ -73,7 +73,7 @@ class Report implements \JsonSerializable
     /**
      * Report created at.
      *
-     * @var \DateTime
+     * @var \DateTimeImmutable
      * @since 1.0.0
      */
     protected \DateTimeImmutable $createdAt;
diff --git a/Models/Template.php b/Models/Template.php
index 72ff47d..01146d0 100755
--- a/Models/Template.php
+++ b/Models/Template.php
@@ -99,7 +99,7 @@ class Template implements \JsonSerializable
     /**
      * Template created at.
      *
-     * @var \DateTime
+     * @var \DateTimeImmutable
      * @since 1.0.0
      */
     protected \DateTimeImmutable $createdAt;