His feast did not appear in the Tridentine Calendar of Pope Pius V. In 1602, it was inserted under the date of 4 March, into the General Roman Calendar. With the insertion in 1621 on the same date of the feast of Saint Casimir, the celebration of Pope Lucius was reduced to a commemoration within Saint Casimir's Mass. In the 1969 revision Pope Lucius's feast was omitted from the General Roman Calendar, partly because of the baselessness of the title of "martyr" with which he had previously been honoured, and was moved in the Roman Martyrology to the day of his death.