diff --git a/migrations/Version20241028164059.php b/migrations/Version20241028164059.php
new file mode 100644
index 0000000..e1a7d0d
--- /dev/null
+++ b/migrations/Version20241028164059.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20241028164059 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE teamer CHANGE date_of_birth date_of_birth DATE DEFAULT NULL COMMENT \'(DC2Type:date_immutable)\'');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE teamer CHANGE date_of_birth date_of_birth DATE NOT NULL COMMENT \'(DC2Type:date_immutable)\'');
+    }
+}
diff --git a/src/Entity/Teamer.php b/src/Entity/Teamer.php
index 65569a3..ab33739 100644
--- a/src/Entity/Teamer.php
+++ b/src/Entity/Teamer.php
@@ -43,7 +43,7 @@ class Teamer implements TimestampableEntityInterface
     #[Assert\NotBlank(message: 'Bitte gib dein Geschlecht an', groups: ['profile'])]
     private ?string $gender = null;
 
-    #[ORM\Column(type: Types::DATE_IMMUTABLE)]
+    #[ORM\Column(type: Types::DATE_IMMUTABLE, nullable: true)]
     #[Assert\NotNull(message: 'Bitte gib dein Geburtsdatum an', groups: ['profile'])]
     private ?\DateTimeImmutable $dateOfBirth = null;