diff --git a/src/Bundle/ChillMainBundle/Entity/User.php b/src/Bundle/ChillMainBundle/Entity/User.php
index 10620dc0f..c38dd97c6 100644
--- a/src/Bundle/ChillMainBundle/Entity/User.php
+++ b/src/Bundle/ChillMainBundle/Entity/User.php
@@ -42,7 +42,7 @@ class User implements AdvancedUserInterface
     protected ?int $id = null;
 
     /**
-     * @ORM\Column(type="datetime", nullable=true)
+     * @ORM\Column(type="datetime_immutable", nullable=true)
      */
     private ?DateTimeImmutable $absenceStart = null;
 
diff --git a/src/Bundle/ChillMainBundle/Form/AbsenceType.php b/src/Bundle/ChillMainBundle/Form/AbsenceType.php
index 1f43093e5..8600fd019 100644
--- a/src/Bundle/ChillMainBundle/Form/AbsenceType.php
+++ b/src/Bundle/ChillMainBundle/Form/AbsenceType.php
@@ -24,6 +24,7 @@ class AbsenceType extends AbstractType
         $builder
             ->add('absenceStart', ChillDateTimeType::class, [
                 'required' => true,
+                'input' => 'datetime_immutable',
             ]);
     }
 
diff --git a/src/Bundle/ChillMainBundle/migrations/Version20230111160610.php b/src/Bundle/ChillMainBundle/migrations/Version20230111160610.php
index 1c5f74897..3bdffa6ea 100644
--- a/src/Bundle/ChillMainBundle/migrations/Version20230111160610.php
+++ b/src/Bundle/ChillMainBundle/migrations/Version20230111160610.php
@@ -22,6 +22,7 @@ final class Version20230111160610 extends AbstractMigration
     public function down(Schema $schema): void
     {
         $this->addSql('ALTER TABLE users DROP absenceStart');
+        $this->addSql('COMMENT ON COLUMN users.absenceStart IS \'(DC2Type:datetime_immutable)\'');
     }
 
     public function getDescription(): string