Hello, I’m sorry to hear that you’ve been experiencing issues with your sitemap not refreshing timely. It’s crucial for your sitemap to be updated regularly, especially if you’re publishing new content weekly.
To ensure that your sitemap is updated promptly, you can follow these steps:
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Increase the value of the Links Per Sitemap by one in the Rank Math SEO → Sitemap Settings and save your settings by clicking the Save Changes button at the bottom of the page. Here’s a screenshot to guide you:

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After increasing the links per sitemap, navigate to Settings → Permalinks and click Save Changes to ensure the current settings are applied. Here’s a screenshot to guide you:

By following these steps, you should be able to refresh your sitemap and ensure that it’s updated with your latest content. If you encounter any further issues, please feel free to reach out to our support team, who are available 24×7 and will help you out as soon as possible.
I hope this helps!
Sources:
How to Configure Sitemaps in Rank Math – Best Settings and Tips
Indexed, Not Submitted in Sitemap – Google Search Console » Rank Math
Working With the News Sitemap in Rank Math » Rank Math
How to Change the Date & Time on Your Posts/Pages » Rank Math
Troubleshooting the “Couldn’t Fetch” Error in Google Search Console » Rank Math
Hello,
Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.
This issue usually occurs due to the caching of your website. Can you please try to follow the steps below and see if that works for you?
1. Flush the Sitemap cache by following this video screencast:
https://i.rankmath.com/pipRDp
2. Exclude the Sitemap files of the Rank Math plugin in your caching plugin. The cache could be via a plugin or from the server. For plugins or Cloudflare, please follow this article:
https://rankmath.com/kb/exclude-sitemaps-from-caching/
3. If the above steps don’t seem to work, kindly apply the following filter to your site to disable Rank Math sitemap transients.
add_filter( 'rank_math/sitemap/enable_caching', '__return_false');
Here’s how you can add filter/hook to your WordPress site:
https://rankmath.com/kb/wordpress-hooks-actions-filters/
Let us know how it goes. Looking forward to helping you.
Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.