diff --git a/gitstart b/gitstart
old mode 100644
new mode 100755
index efc0589..c7cf132
--- a/gitstart
+++ b/gitstart
@@ -2,14 +2,14 @@
 
 ########################
 # Author: Shinichi Okada
-# Version : v0.0.5
-# Date: 2021-04-17
+# Date: 2021-05-22
 ###########################
 
 unset user dir repo license_url
 
 script_name=$(basename "$0")
 dir=""
+version="0.1.0"
 
 usage() {
     cat <<EOF
@@ -65,6 +65,10 @@ while (($# > 0)); do # while arguments count>0
     -h | --help)
         usage
         ;;
+    -v | --version)
+        echo ${version}
+        exit
+        ;;
     *) # unknown flag/switch
         POSITIONAL+=("$1")
         shift