diff --git a/backend/config/config.py b/backend/config/config.py
index eaac93b..a8aec25 100644
--- a/backend/config/config.py
+++ b/backend/config/config.py
@@ -1,17 +1,16 @@
 from beanie import init_beanie
 from motor.motor_asyncio import AsyncIOMotorClient
-from pydantic import BaseSettings
-from typing import Literal
+from pydantic import BaseSettings, Field
 
 from models.request import Request
 
 
 class Settings(BaseSettings):
-    DATABASE_URL: str
-    AZURE_KEY: str
-    AZURE_ENDPOINT: str
-    AZURE_LOCATION: str
-    ENV: Literal["dev", "prod"]
+    DATABASE_URL: str = Field(..., env="DATABASE_URL")
+    AZURE_KEY: str = Field(..., env="AZURE_KEY")
+    AZURE_ENDPOINT: str = Field(..., env="AZURE_ENDPOINT")
+    AZURE_LOCATION: str = Field(..., env="AZURE_LOCATION")
+    ENV: str = Field(..., env="ENV")
 
     class Config:
         env_file = ".env"