Nothing you need to upgrade straight away, but it is definitely important to upgrade when you get more into mixing.
Other things also come into account and that is room acoustics. Its like my main problem. I have dope Genelec Monitors but the room i am mixing in acoustically is not the best. I usually make beats late at night also so a good pair of headphones is essential to me.
Have you played back your beats on different systems to hear how your beats actually translate to other systems?