diff --git a/compose.yml b/compose.yml
index b629cf1..45d22c4 100644
--- a/compose.yml
+++ b/compose.yml
@@ -193,9 +193,9 @@ services:
     ports:
       - "8090:5000"
     environment:
-      - GRAMPSWEB_SECRET_KEY=${GRAMPSWEB_SECRET_KEY}
-      - GRAMPSWEB_ADMIN_EMAIL=${GRAMPSWEB_ADMIN_EMAIL}
-      - GRAMPSWEB_ADMIN_PASSWORD=${GRAMPSWEB_ADMIN_PASSWORD}
+      - GRAMPSWEB_SECRET_KEY=${GRAMPSWEB_SECRET_KEY:-dev-grampsweb-secret-key-not-for-production}
+      - GRAMPSWEB_ADMIN_EMAIL=${GRAMPSWEB_ADMIN_EMAIL:-admin@localhost}
+      - GRAMPSWEB_ADMIN_PASSWORD=${GRAMPSWEB_ADMIN_PASSWORD:-gramps_dev_password}
       - GRAMPSWEB_TREE=${GRAMPSWEB_TREE:-Stiftung}
       - GRAMPSWEB_BASE_URL=${GRAMPSWEB_BASE_URL:-http://localhost:8090}
       - GRAMPSWEB_CELERY_CONFIG__broker_url=redis://redis:6379/0