Guzzle error in Composer when installing

[edhelas]

Package guzzle/common is abandoned, you should avoid using it. Use guzzle/guzzle instead.
Package guzzle/stream is abandoned, you should avoid using it. Use guzzle/guzzle instead.
Package guzzle/parser is abandoned, you should avoid using it. Use guzzle/guzzle instead.
Package guzzle/http is abandoned, you should avoid using it. Use guzzle/guzzle instead.

This is fired by composer during the Movim installation

[edhelas (edhelas)]

Fixed here : https://github.com/reactphp/http-client/pull/26/files