diff --git a/Models/Project.php b/Models/Project.php
index 4317081..da359ba 100755
--- a/Models/Project.php
+++ b/Models/Project.php
@@ -155,7 +155,7 @@ class Project
     /**
      * Created at.
      *
-     * @var \DateTime
+     * @var \DateTimeImmutable
      * @since 1.0.0
      */
     private \DateTimeImmutable $createdAt;