Best practices for updating components in a library

The time has arrived for me to update some components in the UI library I use with my client, and I’m afraid that by updating these elements, some mockups might break. For example, If my input fields have a current height of 46px and I update it to 52px, spaces will break in mockups.

So I just want to know if there are some best practices to follow, and if you’ve run into the same issue, how did you solve it?