When I use the command docker-compose up in the directory that has the Docker compose Dockerfile, I am hit with the error below. The error was that in acp times app
docker-compose up
Like @avigil said you need to rebuild your image in order to update it.
If you want to do it in one command you can type:
docker-compose up --build
If you really want to be sure that your containers are recreated run the following command:
docker-compose up --build --force-recreate