diff --git a/Docker/README.md b/Docker/README.md
index c08a764259a..8e62a961292 100644
--- a/Docker/README.md
+++ b/Docker/README.md
@@ -173,28 +173,28 @@ run `docker pull eosio/eos:latest`
 
 run `docker-compose up`
 
-### Dawn 4.0 Testnet
+### Dawn 4.2 Testnet
 
-We can easily set up a Dawn 4.0 local testnet using docker images. Just run the following commands:
+We can easily set up a Dawn 4.2 local testnet using docker images. Just run the following commands:
 
 Note: if you want to use the mongo db plugin, you have to enable it in your `data-dir/config.ini` first.
 
 ```
 # pull images
-docker pull eosio/eos:latest
+docker pull eosio/eos:20180528
 docker pull mongo:latest
 # create volume
 docker volume create --name=nodeos-data-volume
 docker volume create --name=keosd-data-volume
 docker volume create --name=mongo-data-volume
 # start containers
-docker-compose -f docker-compose-dawn4.0.yaml up -d
+docker-compose -f docker-compose-dawn4.2.yaml up -d
 # get chain info
 curl http://127.0.0.1:8888/v1/chain/get_info
 # get logs
-docker-compose logs nodeosd
+docker-compose logs -f nodeosd
 # stop containers
-docker-compose -f docker-compose-dawn4.0.yaml down
+docker-compose -f docker-compose-dawn4.2.yaml down
 ```
 
 The `blocks` data are stored under `--data-dir` by default, and the wallet files are stored under `--wallet-dir` by default, of course you can change these as you want.
diff --git a/Docker/docker-compose-dawn4.0.yaml b/Docker/docker-compose-dawn4.2.yaml
similarity index 93%
rename from Docker/docker-compose-dawn4.0.yaml
rename to Docker/docker-compose-dawn4.2.yaml
index 81f5ed49003..6a23a3d09b1 100644
--- a/Docker/docker-compose-dawn4.0.yaml
+++ b/Docker/docker-compose-dawn4.2.yaml
@@ -10,7 +10,7 @@ services:
       - mongo-data-volume:/data/db
 
   nodeosd:
-    image: eosio/eos:latest
+    image: eosio/eos:20180528
     command: /opt/eosio/bin/nodeosd.sh --data-dir /opt/eosio/bin/data-dir --delete-all-blocks #--mongodb-uri mongodb://mongo:27017/EOS
     hostname: nodeosd
     links:
@@ -24,7 +24,7 @@ services:
       - nodeos-data-volume:/opt/eosio/bin/data-dir
 
   keosd:
-    image: eosio/eos:latest
+    image: eosio/eos:20180528
     command: /opt/eosio/bin/keosd --wallet-dir /opt/eosio/bin/data-dir --http-server-address=127.0.0.1:8900
     hostname: keosd
     links: