diff --git a/.env.template b/.env.template
index 0ddc524e9..d55a89f7a 100644
--- a/.env.template
+++ b/.env.template
@@ -3,7 +3,7 @@ URL=http://localhost:5001
 BACKEND_PATH=/api
 GRAPHQL_PATH=/graphql
 NODE_ENV=development
-MONGODB_URI=mongodb://mongodb:27017/bt
+MONGODB_URI=mongodb://mongodb:27017/bt?replicaSet=rs0
 REDIS_URI=redis://redis:6379
 TZ=America/Los_Angeles # for tslog