An electrical connector assembly includes a connector housing defining a cylindrical terminal cavity, an electrical terminal having a cylindrical portion, and an electrical terminal seal. The electrical terminal seal includes a base formed of a compliant material and a cylindrical protrusion integrally formed with the base and extending from a major surface of the base. The electrical terminal seal defines a cylindrical aperture extending through the protrusion. The protrusion includes a first circumferential rib that is integrally formed with the protrusion. The first circumferential rib extends into the aperture from an inner surface of the protrusion.