Increasing depression and mental health problems among the elderly during the pandemic have become a grave concern. In the present study, we borrowed from the emotional contagion theory and examined the association between social media use (SMU) and depression among the elderly during the pandemic. Our findings suggest that active but not passive SMU is positively related to depression. Moreover, we also examined if SMU (both active and passive) has a varying effect on the mental health of the elderly based on their race, i.e. blacks and whites. Our findings suggest that active SMU is detrimental for both blacks and whites, whereas passive SMU is positively related to depression only among blacks. Further, we undertook multiperiod analyses where depression scores were measured at four different time periods. We found that the adverse impact of SMU on depression persists over time. The present study draws attention to the antecedents of depression among the elderly during COVID-19. Implications for theory and practice are discussed.