diff --git a/objects/passive-dns/definition.json b/objects/passive-dns/definition.json
index b832c40..38994ee 100644
--- a/objects/passive-dns/definition.json
+++ b/objects/passive-dns/definition.json
@@ -6,22 +6,25 @@
   ],
   "attributes": {
     "zone_time_last": {
-      "description": "Last time that the unique tuple (rrname, rrtype, rdata) record has been seen via master file import",
+      "description": "Last time that the unique tuple (rrname, rrtype, rdata) record has been seen via master file import.",
       "ui-priority": 0,
-      "misp-attribute": "datetime"
+      "misp-attribute": "datetime",
+      "disable_correlation": true
     },
     "text": {
-      "description": "",
+      "description": "Description of the passive DNS record.",
       "ui-priority": 0,
-      "misp-attribute": "text"
+      "misp-attribute": "text",
+      "disable_correlation": true
     },
     "count": {
-      "description": "How many authoritative DNS answers were received at the Passive DNS Server's collectors with exactly the given set of values as answers",
+      "description": "How many authoritative DNS answers were received at the Passive DNS Server's collectors with exactly the given set of values as answers.",
       "ui-priority": 0,
-      "misp-attribute": "counter"
+      "misp-attribute": "counter",
+      "disable_correlation": true
     },
     "rrname": {
-      "description": "Resource Record name of the queried resource",
+      "description": "Resource Record name of the queried resource.",
       "categories": [
         "Network activity",
         "External analysis"
@@ -30,7 +33,7 @@
       "misp-attribute": "text"
     },
     "rrtype": {
-      "description": "Resource Record type as seen by the passive DNS",
+      "description": "Resource Record type as seen by the passive DNS.",
       "categories": [
         "Network activity",
         "External analysis"
@@ -51,7 +54,8 @@
         "NAPTR",
         "HINFO",
         "A6"
-      ]
+      ],
+      "disable_correlation": true
     },
     "rdata": {
       "description": "Resource records of the queried resource",
@@ -61,35 +65,41 @@
     "zone_time_first": {
       "description": "First time that the unique tuple (rrname, rrtype, rdata) record has been seen via master file import",
       "ui-priority": 0,
-      "misp-attribute": "datetime"
+      "misp-attribute": "datetime",
+      "disable_correlation": true
     },
     "origin": {
       "description": "Origin of the Passive DNS response",
       "ui-priority": 0,
-      "misp-attribute": "text"
+      "misp-attribute": "text",
+      "disable_correlation": true
     },
     "time_last": {
       "description": "Last time that the unique tuple (rrname, rrtype, rdata) record has been seen by the passive DNS",
       "ui-priority": 0,
-      "misp-attribute": "datetime"
+      "misp-attribute": "datetime",
+      "disable_correlation": true
     },
     "time_first": {
       "description": "First time that the unique tuple (rrname, rrtype, rdata) has been seen by the passive DNS",
       "ui-priority": 0,
-      "misp-attribute": "datetime"
+      "misp-attribute": "datetime",
+      "disable_correlation": true
     },
     "bailiwick": {
       "description": "Best estimate of the apex of the zone where this data is authoritative",
       "ui-priority": 0,
-      "misp-attribute": "text"
+      "misp-attribute": "text",
+      "disable_correlation": true
     },
     "sensor_id": {
       "description": "Sensor information where the record was seen",
       "ui-priority": 0,
-      "misp-attribute": "text"
+      "misp-attribute": "text",
+      "disable_correlation": true
     }
   },
-  "version": 2,
+  "version": 3,
   "description": "Passive DNS records as expressed in draft-dulaunoy-dnsop-passive-dns-cof-01",
   "meta-category": "network",
   "uuid": "b77b7b1c-66ab-4a41-8da4-83810f6d2d6c",