diff --git a/nodes/draco.kosmos.org.json b/nodes/draco.kosmos.org.json
index b62dc83..3e6e9bb 100644
--- a/nodes/draco.kosmos.org.json
+++ b/nodes/draco.kosmos.org.json
@@ -50,12 +50,12 @@
     "cloud": null,
     "chef_packages": {
       "ohai": {
-        "version": "15.9.1",
-        "ohai_root": "/opt/chef/embedded/lib/ruby/gems/2.6.0/gems/ohai-15.9.1/lib/ohai"
+        "version": "15.12.0",
+        "ohai_root": "/opt/chef/embedded/lib/ruby/gems/2.6.0/gems/ohai-15.12.0/lib/ohai"
       },
       "chef": {
-        "version": "15.11.8",
-        "chef_root": "/opt/chef/embedded/lib/ruby/gems/2.6.0/gems/chef-15.11.8/lib"
+        "version": "15.17.4",
+        "chef_root": "/opt/chef/embedded/lib/ruby/gems/2.6.0/gems/chef-15.17.4/lib"
       }
     }
   },
diff --git a/nodes/fornax.kosmos.org.json b/nodes/fornax.kosmos.org.json
index d9c4aa0..d0ecedc 100644
--- a/nodes/fornax.kosmos.org.json
+++ b/nodes/fornax.kosmos.org.json
@@ -70,8 +70,8 @@
         "ohai_root": "/opt/chef/embedded/lib/ruby/gems/2.6.0/gems/ohai-15.12.0/lib/ohai"
       },
       "chef": {
-        "version": "15.14.0",
-        "chef_root": "/opt/chef/embedded/lib/ruby/gems/2.6.0/gems/chef-15.14.0/lib"
+        "version": "15.17.4",
+        "chef_root": "/opt/chef/embedded/lib/ruby/gems/2.6.0/gems/chef-15.17.4/lib"
       }
     }
   },