How to upgrade mysql version

[makaishi2]

I want to upgrade MySQL version from 5.7 to 8.0 for security reason.
I changed following docker-compose.yml

before: image: mysql:5.7
after: image: mysql:8.0

https://raw.githubusercontent.com/campsych/concerto-platform/master/deploy/docker-compose/docker-compose.yml

But new docker system cannot run (no error occurred but web application screen does not appear)

Would you please advice me is there any way to run this configuration?

Thanks.