diff --git a/compose.yml b/compose.yml
index 05a20a0..2ddd8db 100644
--- a/compose.yml
+++ b/compose.yml
@@ -14,8 +14,9 @@ services:
       - redis
       - s3
     environment:
-      - DATABASE_URL=postgres://user:pass@localhost:5532/outline
-      - DATABASE_URL_TEST=postgres://user:pass@localhost:5532/outline-test
+      - DATABASE_URL=postgres://user:pass@${STACK_NAME}_postgres:5532/outline
+      - DATABASE_URL_TEST=postgres://user:pass@${STACK_NAME}_postgres:5532/outline-test
+      - REDIS_URL=redis://${STACK_NAME}redis:6479
       - URL=https://$DOMAIN
       - FORCE_HTTPS=true
       - SECRET_KEY