President Salva Kiir has removed the Minister of Finance, David Deng Athorbei, in a mini-cabinet reshuffle.
Mr Athorbei took over the ministry in early 2015, replacing Aggrey Tisa Sabuni, who is now the presidential advisor on economic affairs.
Mr Athrobei was also the finance minister ahead of the 2010 general elections, until he was taken to another ministry after independence in 2011.
He was removed from the finance ministry in a decree broadcast on the SSBC last evening.
The president also issued another decree, appointing Stephen Dhieu Dau as the new Finance Minister.
Mr Dhieu was the Minister of Trade and Industry until his new assignment. He also worked as the Minister of Petroleum before the formation of the transitional government of national unity.