diff --git a/dev-python/stsci-sphinxext/stsci-sphinxext-1.2.1.ebuild b/dev-python/stsci-sphinxext/stsci-sphinxext-1.2.1.ebuild
index 0c3b5c5cd13fb..e2fa911999ebc 100644
--- a/dev-python/stsci-sphinxext/stsci-sphinxext-1.2.1.ebuild
+++ b/dev-python/stsci-sphinxext/stsci-sphinxext-1.2.1.ebuild
@@ -1,9 +1,9 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=5
 
-PYTHON_COMPAT=( python2_7 python3_{4,5} )
+PYTHON_COMPAT=( python2_7 python3_{4,5,6} )
 
 MY_PN=${PN/-/.}
 MY_P=${MY_PN}-${PV}