diff --git a/build.sh b/build.sh
index 378a0a7b5524ea89686b0a0d55aaa6f39792c79a..ebd5b1cd5fe3f4fe29d8d7ac60295772d92e2e68 100644
--- a/build.sh
+++ b/build.sh
@@ -58,7 +58,7 @@ function print_help()
 
 ##default install version storage path
 declare db_name_for_package='openGauss'
-declare version_number='2.1.0'
+declare version_number='3.0.0'
 
 if [ $# = 0 ] ; then 
     echo "missing option"