trusty64.erb in boxes-2.3.0

- old
+ new

@@ -24,11 +24,11 @@
             <%- else -%>
             "guest_os_type": "Ubuntu_64",
             <%- end -%>
             "headless": true,
 
-            "iso_url": "http://old-releases.ubuntu.com/releases/14.04.3/ubuntu-14.04.3-server-amd64.iso",
-            "iso_checksum": "a3b345908a826e262f4ea1afeb357fd09ec0558cf34e6c9112cead4bb55ccdfb",
+            "iso_url": "http://releases.ubuntu.com/trusty/ubuntu-14.04.4-server-amd64.iso",
+            "iso_checksum": "07e4bb5569814eab41fafac882ba127893e3ff0bdb7ec931c9b2d040e3e94e7a",
             "iso_checksum_type": "sha256",
 
             "ssh_username": "vagrant",
             "ssh_password": "vagrant",
             "ssh_timeout": "15m",