Gratitude is associated with a host of positive outcomes; yet, little is understood about the ways in which parents may foster gratitude in their children. The current study allows for the examination of one possible mechanism, namely parent-child conversations, that may be used to encourage gratitude in children. Using a rigorous experimental design, we tested whether an online program that was designed to enrich parents' skills in having conversations about gratitude with their children was effective in changing parents' socialization behaviors and children's gratitude. Results demonstrated that parents can successfully utilize an online program to enhance their gratitude-related communication. This training permeates other aspects of how parents socialize gratitude in children and positively impacts children's gratitude moments. Implications for program development and understanding the role of parents in the development of children's gratitude are discussed.