Fatal Compile Error: Declaration of Http\Client\Socket\Stream::close() must be compatible

[ro0NL]

Fatal Compile Error: Declaration of Http\Client\Socket\Stream::close()
must be compatible with Psr\Http\Message\StreamInterface::close(): void

$ composer show php-http/socket-client | grep version
versions : * 2.1.1
$ composer show psr/http-message | grep version
versions : * 2.0

[ro0NL]

i suggest to add this dep to the non-dev requirements