diff --git a/core/models/pydantic_models/VlessData.py b/core/models/pydantic_models/VlessData.py
index d5c07b3..dd67737 100644
--- a/core/models/pydantic_models/VlessData.py
+++ b/core/models/pydantic_models/VlessData.py
@@ -15,7 +15,7 @@ class VlessData(BaseModel):
     subscription_url: HttpUrl
     server_ip: IPv4Address
     location_country_code: str
-    location_city_code: int
+    location_city_code: str
     operator_id: int
     operator_domain: str = None # redundant
     vless_host: str = None # redundant