diff --git a/dev-python/traitlets/traitlets-4.3.3.ebuild b/dev-python/traitlets/traitlets-4.3.3.ebuild
index d013bd38ca5ff..aa50d4904df4b 100644
--- a/dev-python/traitlets/traitlets-4.3.3.ebuild
+++ b/dev-python/traitlets/traitlets-4.3.3.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-PYTHON_COMPAT=( python3_{6,7,8} )
+PYTHON_COMPAT=( python3_{6..9} )
 
 inherit distutils-r1