diff --git a/dev-python/actdiag/actdiag-0.5.4.ebuild b/dev-python/actdiag/actdiag-0.5.4.ebuild
index 42aa817..503f3c9 100644
--- a/dev-python/actdiag/actdiag-0.5.4.ebuild
+++ b/dev-python/actdiag/actdiag-0.5.4.ebuild
@@ -1,9 +1,9 @@
-# Copyright 2019 Gentoo Authors
+# Copyright 2019-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
 
-PYTHON_COMPAT=( python2_7 python3_{6,7,8} )
+PYTHON_COMPAT=( python3_{6,7,8,9} )
 inherit distutils-r1
 
 DESCRIPTION="actdiag generate activity-diagram image file from spec-text file."