diff --git a/objects/domain-crawled/definition.json b/objects/domain-crawled/definition.json
index 9118600..4c89e6e 100644
--- a/objects/domain-crawled/definition.json
+++ b/objects/domain-crawled/definition.json
@@ -17,8 +17,7 @@
         "External analysis"
       ],
       "ui-priority": 1,
-      "misp-attribute": "domain",
-      "multiple": true
+      "misp-attribute": "domain"
     },
     "url": {
       "description": "domain url",
@@ -31,7 +30,7 @@
       "multiple": true
     }
   },
-  "version": 1,
+  "version": 2,
   "description": "A domain crawled over time",
   "meta-category": "network",
   "uuid": "bad4888d-c44e-4612-b08f-3d97c1e0014a",