diff --git a/api/v1/serializers/user.py b/api/v1/serializers/user.py
index f334e9a5..e464b5b7 100644
--- a/api/v1/serializers/user.py
+++ b/api/v1/serializers/user.py
@@ -10,7 +10,7 @@ User = get_user_model()
 
 
 class UserSerializer(serializers.ModelSerializer):
-    phone = PhoneNumberField()
+    phone = PhoneNumberField(allow_blank=True)
 
     class Meta:
         model = User