A dispensing assembly is provided for a container of fluent material. A hand-operable dispenser cartridge is adapted to be mounted to the container. An actuator, which may include a nozzle or spout, is mounted on the cartridge. A locking sleeve is mounted around the cartridge and has an upper abutment edge and a recess. The locking sleeve can be rotated between a first rotated position preventing actuation of the dispensing assembly and a second rotated position permitting actuation of the dispensing assembly.