diff --git a/users/models.py b/users/models.py
index 032c4d4..f08e479 100644
--- a/users/models.py
+++ b/users/models.py
@@ -35,12 +35,12 @@ class User(BaseModel, AbstractBaseUser, PermissionsMixin):
     is_consent_personal_info = models.BooleanField(default=False)
     is_consent_third_party_sharing = models.BooleanField(default=False)
     is_consent_marketing = models.BooleanField(default=False)
-    phone = models.CharField(max_length=11, blank=True)
+    phone = models.CharField(max_length=11, unique=True, blank=True)
     # is_phone_verified = models.BooleanField(default=False)
-    nickname = models.CharField(max_length=20, blank=True)
+    nickname = models.CharField(max_length=20, unique=True, blank=True)
     gender = models.CharField(choices=GenderChoices.choices, max_length=1, blank=True)
     birth_date = models.CharField(max_length=10, blank=True)
-    custom_url = models.CharField(max_length=20, blank=True)
+    custom_url = models.CharField(max_length=20, unique=True, blank=True)
     is_custom_url = models.BooleanField(default=False)
     job_and_interests = ArrayField(models.CharField(max_length=20), default=list, blank=True)
     skills = ArrayField(models.CharField(max_length=20), default=list, blank=True)