diff --git a/Docker/crawlab/crawlab-master.yml b/Docker/crawlab/crawlab-master.yml
index 3e553ae..d1dc67d 100644
--- a/Docker/crawlab/crawlab-master.yml
+++ b/Docker/crawlab/crawlab-master.yml
@@ -6,7 +6,7 @@ services:
     restart: unless-stopped
     environment:
       CRAWLAB_NODE_MASTER: Y  # Y: master node
-      CRAWLAB_MONGO_HOST: mongo  # mongo host address. In the docker compose network, directly refer to the service name
+      CRAWLAB_MONGO_HOST: mongodb  # mongo host address. In the docker compose network, directly refer to the service name
       CRAWLAB_MONGO_PORT: 27017  # mongo port 
       CRAWLAB_MONGO_DB: crawlab  # mongo database 
       CRAWLAB_MONGO_USERNAME: username  # mongo username