Customizing unbranded dynamic checkout button text

[TEKstepas]

Hi, I'm about to launch a shopify site and realized that a single thing is not right and that is the "Buy It Now" button. I searched the whole theme and there is no option to change this to the required languge. It seems that the Buy It Now button is a dynamic button and this/the text is locked. Please someone help! I need to launch soon as required by client.