Are there any security implications to changing the base of a hash?

File this under "gosh, I’d hope not," but I’ve been surprised before.

I have a hash (SHA-1 specifically). I need to store the full hash, but due to constraints outside my control, I can only use a limited number of characters to store it. I chose to change to base-36 to make the hash a shorter length.

Changing to base-36 makes the number of characters vary (between 27 and 31 instead of the original 40). This made me wonder about possible security implications of changing the base. Are there any?