Nigeria have dropped nine places to 50th in the latest FIFA ranking.
The Super Eagles finished 41st in October, after beating Zambia 1-0 to qualify for the 2018 World Cup in Russia.
However, despite beating Argentina 4-2 in a high-grade international friendly earlier this month, they are now eighth on the continent.
Germany remain number one in the world, with the top five remaining unchanged.
Brazil follow the world champions in second place, with Euro 2016 winners Portugal in third. Argentina are fourth, with Belgium completing the top five.
The final FIFA world ranking for 2017 will be announced on December 21.