tweak
verb [ T ]
uk/twiːk/ usto make small changes to something in order to finish or improve it:
The contract needs a little tweaking but it's almost there.
tweak
noun [ C ]
uk/twiːk/ usa small change to something to finish or improve it:
give sth a tweak They give it a little tweak and it's that much better.
last-minute/minor tweaks