Need to delete default tag

I am reinstalling smartthings-mqtt-bridge
and this is what I get back

sudo docker pull stjohnjohnson/smartthings-mqtt-bridge
Using default tag: latest
latest: Pulling from stjohnjohnson/smartthings-mqtt-bridge
Digest: sha256:3b7ab74255b60b1f859c73ea3e3a1d27f8b7c8ea5f800aa761596f1fcd903d26
Status: Image is up to date for stjohnjohnson/smartthings-mqtt-bridge:latest
who do I delete or rename what is the command for that