diff --git a/dev-python/protobuf-python/protobuf-python-9999.ebuild b/dev-python/protobuf-python/protobuf-python-9999.ebuild
index 1ab43ec56dea1..8d11dac7b3745 100644
--- a/dev-python/protobuf-python/protobuf-python-9999.ebuild
+++ b/dev-python/protobuf-python/protobuf-python-9999.ebuild
@@ -24,7 +24,7 @@ else
 fi
 
 LICENSE="BSD"
-SLOT="0/19"
+SLOT="0/20"
 KEYWORDS=""
 IUSE=""