According to the rankings on the website, seven global "A" matches, all friendlies, took place in the month and as a result there are few movers in the latest ranking.
There will be one more update to the rankings before the start of the World Cup‚ but at this stage champions Germany head to the tournament as the top-ranked side on the planet.
There are no movers inside the world's top 47 places, and therefore Africa's top six remain as they were in April.
The latest ranking, which was released on Thursday on FIFA's official website, recorded few changes as the first 47 countries retained their previous positions.
There were no changes at the world's top 40 with Germany, Brazil and Belgium still clinging to the top three positions with barely a month to the Fifa World Cup kickoff in Russian Federation.
Kuwait (160, up 16) leaped up the table, thanks in part to their 2-0 friendly victory over Palestine.
However, the 2018 World Cup qualifiers will hope to move up with a good result against DRC, who are rated 35 in the world, on May 28 in Port Harcourt.
The matches of the 2018 World Cup will be held between June 14 and July 15 at 12 stadiums located in the 11 mentioned above cities across Russian Federation.