modify,
alter,
change make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage"
peg stabilize (the price of a commodity or an exchange rate) by legislation or market operations; "The weak currency was pegged to the US Dollar"
stabilise -
become stable or more stable; "The economy stabilized"
change undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night"
