Under current plans, by the end of 2028, the state pension age will have risen to 67.
A subsequent rise to 68 was scheduled to occur between 2044 and 2046.
However, reports suggested ministers had been contemplating an acceleration to between 2037 and 2039.
Mel Stride, work and pensions secretary, told MPs: “Given the level of uncertainty about the data on life expectancy, labour markets and the public finances, and the significance of these decisions on the lives of millions of people, I am mindful a different decision might be appropriate once these factors are clearer.