If you are using a WordPress caching plugin on your site, then you need to clear your plugin cache. Most caching plugins allow you to easily do that from the plugin’s Settings page.
Clear Cache in WP Rocket
WP Rocket is the best WordPress caching plugin on the market. The best part about using WP Rocket is that it proactively builds your WordPress cache in the background, so your users are always served a cached version.
It also makes it very easy to clear caches files with a single click.
Simply go to the Settings » WP Rocket page and click on the ‘Clear Cache’ button under the dashboard tab.