diff --git a/README.md b/README.md
index 1c496da..620cdcb 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-### Auto-scaling Concourse CI v1.2 on AWS with Terraform
+### Auto-scaling Concourse CI on AWS with Terraform
 
 http://www.slideshare.net/mumoshu/autoscaled-concourse-ci-on-aws-wo-bosh
 
diff --git a/concourse-baked.json b/concourse-baked.json
index 1db94ff..cb8ea44 100644
--- a/concourse-baked.json
+++ b/concourse-baked.json
@@ -11,13 +11,13 @@
     "source_ami": "{{user `source_ami`}}",
     "instance_type": "t2.micro",
     "ssh_username": "ubuntu",
-    "ami_name": "packer-concourse-v1.3.1-{{timestamp}}"
+    "ami_name": "packer-concourse-v1.6.0-{{timestamp}}"
   }],
   "provisioners": [{
     "type": "shell",
     "inline": [
       "uname -a",
-      "curl -v -L https://github.com/concourse/concourse/releases/download/v1.3.1/concourse_linux_amd64 -o concourse",
+      "curl -v -L https://github.com/concourse/concourse/releases/download/v1.6.0/concourse_linux_amd64 -o concourse",
       "chmod +x concourse",
       "sudo mv concourse /usr/local/bin/concourse"
     ]
diff --git a/userdata.sh b/userdata.sh
deleted file mode 100644
index 865af9a..0000000
--- a/userdata.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/bash -v
-apt-get update -y
-apt-get install -y nginx > /tmp/nginx.log
-curl -v -L https://github.com/concourse/concourse/releases/download/v1.0.0/concourse_linux_amd64 -o concourse
-chmod +x concourse
-mv concourse /usr/local/bin/concourse