diff --git a/src/fiber_package/entity/person.py b/src/fiber_package/entity/person.py
index 8e2b670..2b3c4d8 100644
--- a/src/fiber_package/entity/person.py
+++ b/src/fiber_package/entity/person.py
@@ -17,9 +17,9 @@ class PersonModel(FiberBaseModel):
     full_name: str | None = None  # first_name + infix + last_name
     email: EmailStr
     language: LanguageOption
-    gender: Gender | None
+    gender: Gender | None = None
 
-    ldap_id: int | None
+    ldap_id: int | None = None
 
     address: Address | None = None
     phone_number: str | None = None