replacing a link globally on shopify site

[DandS]

We recently launched our new Shopify store, but I am running into an issue with a link I placed on all our product descriptions for Prop 65 warning info. The link I placed was from our old site that is no longer active so they are all coming up broken on every product page (I should have known this would happen but didn't even think about it, whoops!).

What I'm wondering is if I can somehow do a sort of "find and replace" function on the back end to replace all the old broken links with a new one so I don't have to go through product by product? I've attached a screen shot of what this looks like and below are the old and new links:

Old link: http://www.douglasandsturgess.com/californiaprop65.html

New link: https://douglasandsturgess.com/pages/prop-65-warning-info

 

Thanks for your help.