UK Prime Minister Liz Truss has not ruled out increasing the retirement age to help balance the nation's books, but such a move would be highly unpopular with people planning to stop work in the next few years.
Men and women can currently receive state pension at 66.
Under current government plans that age rises to 67 this decade, and 68 as early as 2039. Two reviews of these dates are under way.
The BBC says Ms Truss is under pressure to find savings to pay for her tax-cutting economic growth plan and to get Britain's national debt falling.
She has guaranteed that state pensions will continue to increase in line with wages.
But she has not ruled out real-terms cuts in working age benefits such as universal credit, saying the government has not decided whether to link rises to inflation or not.
Speculate
Asked at the Tory conference in Birmingham if she was going to end up raising the age at which people can claim the state pension age beyond 67, she said: "You're asking me to speculate all kinds of decisions that haven't yet been made."
A review chaired by Conservative peer Baroness Neville-Rolfe is looking at what factors the government should take into account when setting the pension age.
At the moment, the age limit is based on ensuring no-one spends more than one third of their adult life in retirement. A separate review by the government's actuary is examining the latest life-expectancy data.
They are due to report back to the government next May.
Ms Truss will use her set-piece conference speech today to explain why she thinks the "disruption" caused by her economic policies will be worth it.
"Everyone will benefit" from the economic growth produced by her tax-cutting plan, the PM will claim.
Long-term vision
After a bruising conference marked by U-turns and internal division, she will set out a long-term vision for the country under her leadership.
And the BBC says she will attempt to reassure her party that she is on the right path.
"Whenever there is change, there is disruption," she will tell party members.
"Not everyone will be in favour. But everyone will benefit from the result - a growing economy and a better future."
The four-day conference in Birmingham has been overshadowed by wrangling within the party over the future direction of the economy.
On Monday, Ms Truss dramatically abandoned plans to scrap the top rate of Income Tax announced at the mini-Budget on September 23, after criticism from her own MPs.
FTSE 100
The UK's top share index, the FTSE 100, was down 40 points at 7,043 shortly after opening this morning, following yesterday's 177-point gain.
Brent crude futures were down 0.36% at $91.51 a barrel.
Companies reporting today