diff --git a/src/Bundle/ChillPersonBundle/Entity/Person.php b/src/Bundle/ChillPersonBundle/Entity/Person.php
index f812739c4..056efc388 100644
--- a/src/Bundle/ChillPersonBundle/Entity/Person.php
+++ b/src/Bundle/ChillPersonBundle/Entity/Person.php
@@ -105,9 +105,9 @@ class Person implements HasCenterInterface
      * The person's deathdate
      * @var \DateTime
      *
-     * @ORM\Column(type="date", nullable=true)
+     * @ORM\Column(type="date_immutable", nullable=true)
      */
-    private $deathdate;
+    private ?\DateTimeImmutable $deathdate;
 
     /**
      * The person's place of birth
@@ -159,7 +159,7 @@ class Person implements HasCenterInterface
      * @var CommentEmbeddable
      * @ORM\Embedded(class="Chill\MainBundle\Entity\Embeddable\CommentEmbeddable", columnPrefix="genderComment_")
      */
-    private $genderComment;
+    private CommentEmbeddable $genderComment;
 
     /**
      * The marital status of the person
@@ -183,7 +183,7 @@ class Person implements HasCenterInterface
      * @var CommentEmbeddable
      * @ORM\Embedded(class="Chill\MainBundle\Entity\Embeddable\CommentEmbeddable", columnPrefix="maritalStatusComment_")
      */
-    private $maritalStatusComment;
+    private CommentEmbeddable $maritalStatusComment;
 
     /**
      * Contact information for contacting the person
@@ -279,7 +279,7 @@ class Person implements HasCenterInterface
      *
      * @ORM\Column(type="boolean", options={"default" : false})
      */
-    private $acceptSMS;
+    private ?bool $acceptSMS = null;
 
     /**
      * Accept receiving email
@@ -287,7 +287,7 @@ class Person implements HasCenterInterface
      *
      * @ORM\Column(type="boolean", options={"default" : false})
      */
-    private $acceptEmail;
+    private ?bool $acceptEmail = null;
 
     /**
      * Number of children
@@ -295,7 +295,7 @@ class Person implements HasCenterInterface
      *
      * @ORM\Column(type="integer", nullable=true)
      */
-    private $numberOfChildren;
+    private ?int $numberOfChildren = null;
 
     /**
      * @var boolean