diff --git a/src/Bundle/ChillCalendarBundle/Entity/Calendar.php b/src/Bundle/ChillCalendarBundle/Entity/Calendar.php
index 63803efda..8fc8e9358 100644
--- a/src/Bundle/ChillCalendarBundle/Entity/Calendar.php
+++ b/src/Bundle/ChillCalendarBundle/Entity/Calendar.php
@@ -28,7 +28,6 @@ use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation as Serializer;
-use Symfony\Component\Serializer\Annotation\Groups;
 use Symfony\Component\Validator\Constraints\NotBlank;
 use Symfony\Component\Validator\Constraints\Range;
 use Symfony\Component\Validator\Mapping\ClassMetadata;
@@ -53,7 +52,7 @@ class Calendar implements TrackCreationInterface, TrackUpdateInterface
 
     /**
      * @ORM\ManyToOne(targetEntity="Chill\PersonBundle\Entity\AccompanyingPeriod")
-     * @Groups({"read"})
+     * @Serializer\Groups({"read"})
      */
     private AccompanyingPeriod $accompanyingPeriod;
 
@@ -74,13 +73,13 @@ class Calendar implements TrackCreationInterface, TrackUpdateInterface
 
     /**
      * @ORM\Embedded(class=CommentEmbeddable::class, columnPrefix="comment_")
-     * @Serializer\Groups({"calendar:read"})
+     * @Serializer\Groups({"calendar:read", "read"})
      */
     private CommentEmbeddable $comment;
 
     /**
      * @ORM\Column(type="datetimetz_immutable")
-     * @Serializer\Groups({"calendar:read"})
+     * @Serializer\Groups({"calendar:read", "read"})
      */
     private ?DateTimeImmutable $endDate = null;
 
@@ -88,7 +87,7 @@ class Calendar implements TrackCreationInterface, TrackUpdateInterface
      * @ORM\Id
      * @ORM\GeneratedValue
      * @ORM\Column(type="integer")
-     * @Serializer\Groups({"calendar:read"})
+     * @Serializer\Groups({"calendar:read", "read"})
      */
     private ?int $id = null;
 
@@ -100,19 +99,19 @@ class Calendar implements TrackCreationInterface, TrackUpdateInterface
      *     cascade={"persist", "remove", "merge", "detach"}
      * )
      * @ORM\JoinTable(name="chill_calendar.calendar_to_invites")
-     * @Groups({"read"})
+     * @Serializer\Groups({"read"})
      */
     private Collection $invites;
 
     /**
      * @ORM\ManyToOne(targetEntity="Chill\MainBundle\Entity\Location")
-     * @groups({"read"})
+     * @Serializer\Groups({"read"})
      */
     private ?Location $location = null;
 
     /**
      * @ORM\ManyToOne(targetEntity="Chill\MainBundle\Entity\User")
-     * @Serializer\Groups({"calendar:read"})
+     * @Serializer\Groups({"calendar:read", "read"})
      */
     private ?User $mainUser;
 
@@ -121,8 +120,7 @@ class Calendar implements TrackCreationInterface, TrackUpdateInterface
      *     targetEntity="Chill\PersonBundle\Entity\Person",
      * cascade={"persist", "remove", "merge", "detach"})
      * @ORM\JoinTable(name="chill_calendar.calendar_to_persons")
-     * @Groups({"read"})
-     * @Serializer\Groups({"calendar:read"})
+     * @Serializer\Groups({"calendar:read", "read"})
      */
     private Collection $persons;
 
@@ -131,8 +129,7 @@ class Calendar implements TrackCreationInterface, TrackUpdateInterface
      *     targetEntity="Chill\ThirdPartyBundle\Entity\ThirdParty",
      * cascade={"persist", "remove", "merge", "detach"})
      * @ORM\JoinTable(name="chill_calendar.calendar_to_thirdparties")
-     * @Groups({"read"})
-     * @Serializer\Groups({"calendar:read"})
+     * @Serializer\Groups({"calendar:read", "read"})
      */
     private Collection $professionals;
 
@@ -143,7 +140,7 @@ class Calendar implements TrackCreationInterface, TrackUpdateInterface
 
     /**
      * @ORM\Column(type="datetimetz_immutable")
-     * @Serializer\Groups({"calendar:read"})
+     * @Serializer\Groups({"calendar:read", "read"})
      */
     private ?DateTimeImmutable $startDate = null;