diff --git a/CMakeLists.txt b/CMakeLists.txt
index e72caab..3f001b0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,7 +46,7 @@ HunterGate(
 )
 
 project(bcos-boostssl VERSION "1.0.0")
-set(VERSION_SUFFIX "")
+set(VERSION_SUFFIX "-rc1")
 
 # basic settings
 include(Options)