diff --git a/main.py b/main.py
index cc3fc19..f74e315 100644
--- a/main.py
+++ b/main.py
@@ -120,7 +120,7 @@ async def require_iap(request: Request, call_next):
             from google.auth.transport import requests as grequests
             id_token.verify_oauth2_token(
                 token, grequests.Request(),
-                audience="https://osvauco-agent-zjbqp3prqq-uc.a.run.app"
+                audience=os.environ.get("SERVICE_URL", "https://osvauco-agent-357036551735.us-central1.run.app")
             )
             return await call_next(request)
         except Exception as e:
@@ -199,7 +199,7 @@ def require_auth(func):
                 from google.auth.transport import requests as grequests
                 idinfo = id_token.verify_oauth2_token(
                     token, grequests.Request(),
-                    audience="https://osvauco-agent-zjbqp3prqq-uc.a.run.app"
+                    audience=os.environ.get("SERVICE_URL", "https://osvauco-agent-357036551735.us-central1.run.app")
                 )
                 request.session['user'] = {'email': idinfo.get('email', 'service-account')}
                 return await func(request, *args, **kwargs)