diff --git a/cproto/cproto.spec b/cproto/cproto.spec
index a53c6aa534..7c2cc0efa5 100644
--- a/cproto/cproto.spec
+++ b/cproto/cproto.spec
@@ -22,8 +22,8 @@
 ##
 
 #   package version
-%define       V_opkg 4.7r
-%define       V_dist 4.7r
+%define       V_opkg 4.7s
+%define       V_dist 4.7s
 
 #   package information
 Name:         cproto
@@ -36,7 +36,7 @@ Class:        PLUS
 Group:        Development
 License:      Public Domain
 Version:      %{V_opkg}
-Release:      20210116
+Release:      20210304
 
 #   list of sources
 Source0:      ftp://ftp.invisible-island.net/cproto/cproto-%{V_dist}.tgz