diff --git a/services/auth_service.py b/services/auth_service.py
index 231bdb1..2b4fb18 100644
--- a/services/auth_service.py
+++ b/services/auth_service.py
@@ -15,7 +15,7 @@ from repositories.auth_repository import (
     revoke_auth_session,
 )
 
-IDLE_TIMEOUT_SECONDS = 99999
+IDLE_TIMEOUT_SECONDS = 999_999
 SESSION_TOUCH_THROTTLE_SECONDS = 60
 PBKDF2_ITERATIONS = 260_000