title: How do I resolve this RCurl error: "SSL certificate problem: certificate has expired"?
body: <p>I'm just trying to get a simple URL response below and I get the following error. The website is valid and I've been able to pull from it thousands of times in the past.</p>
  
  <pre><code>jsonString &lt;- getURL(full_url)
  
  Error in function (type, msg, asError = TRUE)  : 
    SSL certificate problem: certificate has expired
  </code></pre>
  
  <p>Any ideas? I am running R 4.0.0 (I upgraded to see if that would fix the issue) and have the most up to date RCurl package.</p>