With the COVID-19 pandemic affecting the international season, Konstantinova competed on the domestic Cup of Russia series, placing fifth at the second stage in Moscow and ninth at the fourth stage in Kazan. As a result she failed to qualify to the 2021 Russian Championships, but was subsequently added to the roster following the withdrawal of Ksenia Sinitsyna. She placed sixteenth at the national championships. On January 13, Konstantinova announced that she'd be leaving coaches Alexander Volkov and Evgeni Plushenko to train under Viktoria Butsaeva.