This will only be true if the bug fix had local impact.
If instead the discovered bug was more fundamental in nature (i.e. a problem was found in the actual design/implmentation of the signature/api itself) then every service using that api will need to change.
If instead the discovered bug was more fundamental in nature (i.e. a problem was found in the actual design/implmentation of the signature/api itself) then every service using that api will need to change.