diff --git a/ubuntu-14.04/template.json b/ubuntu-14.04/template.json
index 4ac35fb..f61485b 100644
--- a/ubuntu-14.04/template.json
+++ b/ubuntu-14.04/template.json
@@ -125,9 +125,9 @@
       "output_directory": "images/{{ user `distro` }}-vbox-{{ timestamp  }}",
       "guest_os_type": "Ubuntu_64",
       "http_directory": "http",
-      "iso_checksum": "9e5fecc94b3925bededed0fdca1bd417",
+      "iso_checksum": "2ac1f3e0de626e54d05065d6f549fa3a",
       "iso_checksum_type": "md5",
-      "iso_url": "http://releases.ubuntu.mirror.dkm.cz/releases/14.04/ubuntu-14.04.3-server-amd64.iso",
+      "iso_url": "http://releases.ubuntu.mirror.dkm.cz/releases/14.04/ubuntu-14.04.4-server-amd64.iso",
       "ssh_username": "{{user `user`}}",
       "ssh_password": "{{user `password`}}",
       "ssh_port": 22,
@@ -177,9 +177,9 @@
       "output_directory": "images/{{ user `distro` }}-vmware-{{ timestamp  }}",
       "guest_os_type": "linux",
       "http_directory": "http",
-      "iso_checksum": "9e5fecc94b3925bededed0fdca1bd417",
+      "iso_checksum": "2ac1f3e0de626e54d05065d6f549fa3a",
       "iso_checksum_type": "md5",
-      "iso_url": "http://releases.ubuntu.mirror.dkm.cz/releases/14.04/ubuntu-14.04.3-server-amd64.iso",
+      "iso_url": "http://releases.ubuntu.mirror.dkm.cz/releases/14.04/ubuntu-14.04.4-server-amd64.iso",
       "ssh_username": "{{user `user`}}",
       "ssh_password": "{{user `password`}}",
       "ssh_port": 22,
@@ -198,9 +198,9 @@
       "format": "qcow2",
       "accelerator": "kvm",
       "disk_size": "{{ user `disk_size`}}",
-      "iso_url": "http://releases.ubuntu.mirror.dkm.cz/releases/14.04/ubuntu-14.04.3-server-amd64.iso",
+      "iso_url": "http://releases.ubuntu.mirror.dkm.cz/releases/14.04/ubuntu-14.04.4-server-amd64.iso",
       "iso_checksum_type": "md5",
-      "iso_checksum": "9e5fecc94b3925bededed0fdca1bd417",
+      "iso_checksum": "2ac1f3e0de626e54d05065d6f549fa3a",
       "http_directory": "http",
       "headless": true,
       "ssh_username": "{{user `user`}}",