Aging is marked by a gradual change in macromolecules that, over time, negatively affect biological processes such as gene expression and the maintenance of chromatin structure. Age-related aberrant gene expression can lead to a number of health complications, making age the single greatest risk factor for the development of many human diseases. Heterochromatin proteins play important roles in chromatin structure and gene regulation, suggesting a link to aging. To further investigate, we have chosen the Drosophila melanogaster protein HP1B, a member of the Heterochromatin Protein 1 (HP1) family of proteins. HP1 proteins are highly conserved across eukaryotes, playing a vital role in the formation and maintenance of heterochromatin. To probe for a connection between HP1B and aging, we assayed two HP1b null mutant strains for phenotypes related to aging. We measured longevity, as well as various forms of stress resistance. Our results show that fly strains lacking HP1B have both increased starvation and oxidative stress resistance. In addition, although they have shorter maximum lifespans compared to the wildtype, they have a longer average lifespan. These results support a potential connection between chromatin proteins and aging and suggest that chromatin proteins should be evaluated as targets for future aging therapies.