diff --git a/install.sh b/install.sh
index ecf56b6..9f5bf55 100755
--- a/install.sh
+++ b/install.sh
@@ -15,6 +15,11 @@ function install_host {
 
     [ `id -u` -ne 0 ] && echo 'root privilege required' && exit 1
 
+	# required packages jq
+	dpkg-query --status jq
+	[ $? -ne 0 ] && sudo apt install -y jq
+
+
     if [[ ! $BASEDIR == '/opt/debian-bash' ]]; then
         # download and filfull /opt/debian-bash, then run it from folder
 
@@ -23,6 +28,7 @@ function install_host {
 			./install.sh $PARAM1
 			exit 0
 		else
+
 	        rm -rf /opt/debian-bash
 	        TEMP=`mktemp -d`
 	        cd $TEMP