Changing a link on every productpage description

So i recently exported my database to another domainname and everything well. Maybe even a little bit too well. In every product description on my website I used a link or two to the catalogs on my website. Now since i changed my domainname the url used for the link has become invalid. Is there anyway to change all the url’s in every product discription link all at once?

The page I need help with: [log in to see the link]