Filling old boot holes

After a long wait, i finally got myself a boot that i wanted. But, due to the age of the boot, its been drilled into before, and the hardware is too small for the holes, and i cant drill new holes because theyre coincidentally perfect with the old ones. any advice on how i could fill these holes to ensure a safe and secure redrill?Taking it to a skate shop is not an option.

Thank you!