diff --git a/misp.json b/misp.json
index 52f5929..c453fcb 100644
--- a/misp.json
+++ b/misp.json
@@ -9,12 +9,12 @@
         "hostname": "misp",
         "http_proxy": "{{env `http_proxy`}}",
         "https_proxy": "{{env `https_proxy`}}",
-        "iso_checksum": "57c3a25f2c5fd61596ce39afbff44dd49b0089a2",
-        "iso_checksum_type": "sha1",
-        "iso_name": "ubuntu-18.04.2-server-amd64.iso",
+        "iso_checksum": "b957311833d79c14bd6743feac2e641938f99ee96679895a04c703391d1fb6e8c92fe609d9401228c28d85fee7a816967051f5206119e7fe674f8ca798e9267d",
+        "iso_checksum_type": "sha512",
+        "iso_name": "ubuntu-18.04.3-server-amd64.iso",
         "iso_path": "iso",
-        "iso_url": "http://cdimage.ubuntu.com/ubuntu/releases/bionic/release/ubuntu-18.04.2-server-amd64.iso",
-        "memory": "2048",
+        "iso_url": "http://cdimage.ubuntu.com/ubuntu/releases/bionic/release/ubuntu-18.04.3-server-amd64.iso",
+        "memory": "3072",
         "no_proxy": "{{env `no_proxy`}}",
         "ovftool_path": "ovftool",
         "preseed":"preseed.cfg",