diff --git a/dev-python/zc-lockfile/zc-lockfile-1.4.ebuild b/dev-python/zc-lockfile/zc-lockfile-1.4.ebuild
index 30180d3637525..a0df19dfbd0d6 100644
--- a/dev-python/zc-lockfile/zc-lockfile-1.4.ebuild
+++ b/dev-python/zc-lockfile/zc-lockfile-1.4.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
-PYTHON_COMPAT=( python{2_7,3_4,3_5,3_6} )
+PYTHON_COMPAT=( python{2_7,3_4,3_5,3_6,3_7} pypy3 )
 
 inherit distutils-r1