How to install laravel passpost with authy and guzzle

I have laravel 5.3 version installed ad now I am going to implement OAuth2.0 using laravel passport. But When installing laravel/passport=~1.0 , this gives me error for Authy and guzzle about version conflict. I am using authy 2.0 and authy requires guzzle 5., if I use passport then passport requires guzzle 6.. Please resolve issue. Thanks.

via Chebli Mohamed