Update debian image
diff --git a/debian-8/template.json b/debian-8/template.json
index 3f0bceb..7f3be00 100644
--- a/debian-8/template.json
+++ b/debian-8/template.json
@@ -121,9 +121,9 @@
       "output_directory": "images/{{ user `distro` }}-vbox-{{ isotime \"200601020304\"  }}",
       "guest_os_type": "Debian_64",
       "http_directory": "http",
-      "iso_checksum": "a9b490b4215d1e72e876b031dafa7184",
+      "iso_checksum": "e9f61bf327db6d8f7cee05a99f2353cc",
       "iso_checksum_type": "md5",
-      "iso_url": "http://cdimage.debian.org/debian-cd/8.3.0/amd64/iso-cd/debian-8.3.0-amd64-netinst.iso",
+      "iso_url": "http://cdimage.debian.org/debian-cd/8.6.0/amd64/iso-cd/debian-8.6.0-amd64-netinst.iso",
       "ssh_username": "{{user `user`}}",
       "ssh_password": "{{user `password`}}",
       "ssh_port": 22,
@@ -169,9 +169,9 @@
       "output_directory": "images/{{ user `distro` }}-vmware-{{ isotime \"200601020304\"  }}",
       "guest_os_type": "linux",
       "http_directory": "http",
-      "iso_checksum": "a9b490b4215d1e72e876b031dafa7184",
+      "iso_checksum": "e9f61bf327db6d8f7cee05a99f2353cc",
       "iso_checksum_type": "md5",
-      "iso_url": "http://cdimage.debian.org/debian-cd/8.3.0/amd64/iso-cd/debian-8.3.0-amd64-netinst.iso",
+      "iso_url": "http://cdimage.debian.org/debian-cd/8.6.0/amd64/iso-cd/debian-8.6.0-amd64-netinst.iso",
       "ssh_username": "{{user `user`}}",
       "ssh_password": "{{user `password`}}",
       "ssh_port": 22,
@@ -193,9 +193,9 @@
       "format": "qcow2",
       "accelerator": "kvm",
       "disk_size": "{{ user `disk_size`}}",
-      "iso_url": "http://cdimage.debian.org/debian-cd/8.3.0/amd64/iso-cd/debian-8.3.0-amd64-netinst.iso",
+      "iso_url": "http://cdimage.debian.org/debian-cd/8.6.0/amd64/iso-cd/debian-8.6.0-amd64-netinst.iso",
       "iso_checksum_type": "md5",
-      "iso_checksum": "a9b490b4215d1e72e876b031dafa7184",
+      "iso_checksum": "e9f61bf327db6d8f7cee05a99f2353cc",
       "http_directory": "http",
       "headless": true,
       "ssh_username": "{{user `user`}}",