title: Hubspot PHP API cURL error 60: Peer's Certificate issuer is not recognized
body: <p>I am using this <a href="https://github.com/ryanwinchester/hubspot-php" rel="nofollow noreferrer">hubspot-php</a> package in my php laravel v5 project.</p>
  
  <p>It connects to hubspot and fetches deals. I have tested it locally and it works fine on my local machine. But when I pushed it to my production / live server (i.e., ec2-instance [centos 7] running via apache). It throws this error:</p>
  
  <blockquote>
    <p>cURL error 60: Peer's Certificate issuer is not recognized. (see http://curl.haxx.se/libcurl/c/libcurl-errors.html)</p>
  </blockquote>
  
  <p>with status code: 500 ..</p>
  
  <p>can anyone please help me fix this issue?</p>
  
  <p>Thanks.</p>