diff --git a/app/utils/auth.py b/app/utils/auth.py
index a193cb1..5b8ea56 100644
--- a/app/utils/auth.py
+++ b/app/utils/auth.py
@@ -3,7 +3,7 @@ from app.config import settings
 
 def get_headers():
     return {
-        'Content-Type': 'application/json',
+        "Content-Type": "application/json",
         "x-api_key": settings.BANK_CALL_API_KEY,
         "App-Id": settings.BANK_CALL_APP_ID,
     }