diff --git a/dev-python/unittest-mixins/unittest-mixins-1.6.ebuild b/dev-python/unittest-mixins/unittest-mixins-1.6.ebuild
index 65f635f60cd35..d543386581b07 100644
--- a/dev-python/unittest-mixins/unittest-mixins-1.6.ebuild
+++ b/dev-python/unittest-mixins/unittest-mixins-1.6.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
-PYTHON_COMPAT=( python2_7 python3_{6,7,8} pypy3 )
+PYTHON_COMPAT=( python2_7 python3_{6,7,8,9} pypy3 )
 
 inherit distutils-r1