diff --git a/dev-python/css-parser/css-parser-1.0.4-r1.ebuild b/dev-python/css-parser/css-parser-1.0.4-r1.ebuild
index 97f1e05ef0895..b87bcd381f807 100644
--- a/dev-python/css-parser/css-parser-1.0.4-r1.ebuild
+++ b/dev-python/css-parser/css-parser-1.0.4-r1.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
-PYTHON_COMPAT=( python3_{6,7,8} )
+PYTHON_COMPAT=( python3_{6,7,8,9} )
 
 inherit distutils-r1