Error package dependencies with composer and Docker

General Discussions
1

I’m trying to run a Wordpress site by Docker but I have this error:

   Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
2018-05-23T13:52:34.798503900Z 
  Problem 1
    - The requested package wpackagist-plugin/wordpress-seo 5.6 exists as wpackagist-plugin/wordpress-seo[7.0, 7.0.1, 7.0.2, 7.0.3, 7.1, 7.2, 7.3, 7.4, 7.4.1, 7.4.2, 7.5, 7.5.1, dev-trunk] but these are rejected by your constraint.
2018-05-23T13:52:34.798541700Z

Any idea to solve that ?

Thanks