The OECD report made several suggestions, one of which was to adjust Sweden's school choice policy by giving parents with a foreign background more information and support when it comes to picking a school.
The report also calls for Sweden to provide more Swedish language training for immigrant children earlier on - as well to attract and retain more teachers at disadvantaged schools.
Francesca Borgonovi, a senior policy analyst at the OECD, tells Swedish Radio News that the country needs to make sure kids with immigrant backgrounds don't all end up together in the same classrooms.
"The issue is how to make sure that there is diversity in classrooms, which simply reflects the diversity in Swedish society,"
Pisa boss backs scrapping school queue system4:02 min 4:02 min
Academic critical of Pisa test influence on policy4:43 min 4:43 min
Better teachers means better students: OECD4:06 min 4:06 min