President Cyril Ramaphosa has lifted various Covid-19 restrictions that will allow stadiums to operate at 50% capacity.
A maximum of 2,000 fans have been allowed to attend live sports events in South Africa since 11 October.
However, from Wednesday, stadiums are allowed to operate at 50% of their capacity.
Fans must have proof of vaccination or present a negative Covid-19 test. Children under 12 are exempt from this requirement.
Following the announcement, more tickets have been made available for the third ODI between the Proteas and Bangladesh in Centurion on Wednesday.
Tickets will be sold at Gates 2 and 3 from 11am.