Could a shift in values over time drive resolution of identity and intimacy in young adulthood? In the present study, we found support for our hypothesis that increased prioritization of intrinsic values over an academic year predicts university students’ resolution of the Eriksonian stages of identity and intimacy, and that stage resolution would mediate the relationship between value change and enhanced well-being. Among the 196 students followed from September to April, we found that increased prioritization of intrinsic relative to extrinsic values over the year related to greater resolution of both identity and intimacy, controlling for stage resolution at T1, and that increased resolution positively predicted enhanced subjective well-being and psychological well-being over time.