diff --git a/ciscripts/wakame-vdc/provision-imgapp.sh b/ciscripts/wakame-vdc/provision-imgapp.sh
index 91c595f..b2a9348 100755
--- a/ciscripts/wakame-vdc/provision-imgapp.sh
+++ b/ciscripts/wakame-vdc/provision-imgapp.sh
@@ -26,6 +26,11 @@ rpm -qa epel-release* | egrep -q epel-release || {
 }
 yum repolist
 
+# update libcurl
+rpm -Uvh http://www.city-fan.org/ftp/contrib/yum-repo/city-fan.org-release-1-13.rhel6.noarch.rpm
+sed -i "s,enabled=1,enabled=0," /etc/yum.repos.d/city-fan.org.repo
+yum update -y --enablerepo=city-fan.org libcurl
+
 # install rbenv
 git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
 # setup rbenv
@@ -34,13 +39,13 @@ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
 exec $SHELL -l
 
 # install build require for ruby-build
-yum install -y gcc openssl-devel libyaml-devel libffi-devel readline-devel zlib-devel gdbm-devel ncurses-devel
+yum install -y gcc openssl-devel libyaml-devel libffi-devel readline-devel zlib-devel gdbm-devel ncurses-devel libffi-devel
 
 # install ruby-build
 git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
 
 # install ruby
-ruby_version="2.0.0-p598"
+ruby_version="2.2.2"
 
 rbenv install -v "${ruby_version}"
 rbenv rehash