When Social Security was enacted in the 1930s, life expectancy at birth was 62 years and the retirement age was 65. Over the program’s history, Congress made a number of expansions in benefits and taxes. For example, in 1961, Congress enacted a lower early retirement age of 62 with actuarily-reduced benefits relative to the full (or “normal”) retirement age of 65. In 1983, with the program facing insolvency, Congress enacted a series of Social Security reforms including a gradual rise in the full retirement age to 67 to fully take effect between 2022 and 2027.  Today, life expectancy is about 79 years and CBO projects it will be 82 years by 2054. We propose a gradual raise in the the retirement age based on life expectancy. While this proposal would not produce any savings over the next 10 years, over the long-run the savings in the Social Security program would grow substantially.