The Boys in Green have dropped one place in the updated ranking table and find themselves behind the likes of Burkina Faso and Jordan
Following their friendly defeat to Serbia in Dublin on March 5, the Boys in Green have been overtaken by Bulgaria and Jordan, setting a new lowest ranking for the national team in the process.
Since dropping two places to 41 in June 2013, Ireland have continued their decline and have not improved on their ranking in 11 months; the last rise in the ranking came in April 2013 when the team rose one place to 39th.
The top five remain the same, with reigning world and European champions, Spain, at the summit. Ireland's Euro 2016 qualifying rivals Germany are second, while Argentina hang on to third spot.
England have risen two places to 12th in the ranking table after defeating Denmark 1-0, while Scotland, who have been grouped with Ireland in the Euro 2016 qualifying, drop two places to 37th.
Northern Ireland, meanwhile, have fallen one place to 86th in the table following their friendly draw against Cyrprus.