HttpClient SSL error

I have my Http Client configured in a way that I would say it doesn't care about ssl certificates but still get the following error.

$this->http = new Client([

            'host' => $this->base_url . 'api',

            'scheme' => 'https',

            'type' => 'json',

            'timeout' => 5,

            'ssl_verify_peer' => FALSE,

            'ssl_verify_host ' => FALSE

]);

fopen(): SSL operation failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed fopen(): Failed to enable crypto fopen(https://104.167.116.87/api-token-auth/): failed to open stream: operation failed

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