diff --git a/README.md b/README.md
index b9779e3..67b927f 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@ environment
 docker network create scrow 2>/dev/null || true
 docker run -d --network scrow -it --rm --name mongo -p 27017:27017 mongo
 docker run -d --network scrow -e ME_CONFIG_MONGODB_SERVER=mongo -e ME_CONFIG_MONGODB_AUTH_PASSWORD='' -e ME_CONFIG_MONGODB_AUTH_USERNAME='' -e ME_CONFIG_BASICAUTH_USERNAME='a' -e ME_CONFIG_BASICAUTH_PASSWORD=1234 --name mongo-express -p 8081:8081 mongo-express
+docker run -d --network scrow -p 4222:4222 --name nats nats
 ```
 
 acce**ss the mongo-db web interface at http://localhost:8081; username `a`, password `1234`**