After doing some more investigation, I&#x27;m suspecting you&#x27;re running this on Ubuntu 16.04, and not 14.04. Is this correct?<p>HHVM doesn&#x27;t provide a 16.04 package yet in their dl.hhvm.com repo, so what&#x27;s happening is that the provision script installs the system version of HHVM, which is 3.11. On 14.04, you&#x27;ll get the correct version which is 3.13.