The Williams sisters have won 14 major doubles titles, including six at Wimbledon, plus three Olympic gold medals.
They last played doubles together at the 2022 US Open, where they lost to Czechs Lucie Hradecka and Linda Noskova.
Last month, the sisters had to withdraw from the doubles draw at Wimbledon as Serena, 44, dealt with a knee injury.
The American's highly anticipated return to Grand Slam tennis after four years away was ended at Wimbledon in a first-round loss to Australian youngster Maya Joint in the singles.
Venus, 46, has received a singles wild card for the August 11th to 23rd tournament in Cincinnati.