Change Link URL

Hello all,

I have just moved my WP blog from a test url to its proper URL (all on same server and same folder) only thing that has changed is the URL.

the URL was https://www.mywebsite.co.uk.php5-7.websitetestlink.com/
and now it’s https://www.mywebsite.co.uk

The trouble i have is some links within pages still link to the old url for example a link goes to https://www.mywebsite.co.uk.php5-7.websitetestlink.com/?page_id=224
but i would like it to go to https://www.mywebsite.co.uk/?page_id=224

I can go round each page/post and manually edit the url but i was wondering if there is a quicker way.

Thanks in advance.