diff --git a/backend/controllers/auth/authentication_controller.py b/backend/controllers/auth/authentication_controller.py
index d9ffd42e..0f605ee0 100644
--- a/backend/controllers/auth/authentication_controller.py
+++ b/backend/controllers/auth/authentication_controller.py
@@ -1,3 +1,4 @@
+import os
 import string
 from typing import TYPE_CHECKING
 
@@ -13,7 +14,7 @@
 if TYPE_CHECKING:
     from _elementtree import Element
 
-cas_service = "https://localhost:8080/login"
+cas_service = os.getenv("CAS_URL", "https://localhost:8080/login")
 
 
 def authenticate_user(session: Session, ticket: str) -> UserDataclass | None:
diff --git a/backend/controllers/auth/token_controller.py b/backend/controllers/auth/token_controller.py
index 7a07bcd1..c574aa83 100644
--- a/backend/controllers/auth/token_controller.py
+++ b/backend/controllers/auth/token_controller.py
@@ -6,6 +6,7 @@
 
 from domain.models.UserDataclass import UserDataclass
 
+# Zeker aanpassen in production
 jwt_secret = os.getenv("JWT_SECRET", "secret")