The government is considering incorporating more part-timers into the employee pension program by requiring companies with smaller workforces to participate, according to government sources.

Currently, companies with 501 or more employees must enroll in the kōsei nenkin program. Under the plan being considered, that threshold would be lowered to 101 employees in October 2022 and 51 in October 2024, the sources said Tuesday.

The move comes as the government aims to increase pensions people receive amid concerns among workers about whether they will have sufficient financial resources to live on after they retire.