diff --git a/document-store/src/main/java/org/hypertrace/core/documentstore/mongo/MongoCollection.java b/document-store/src/main/java/org/hypertrace/core/documentstore/mongo/MongoCollection.java
index 60f63a5a6..878db32a4 100644
--- a/document-store/src/main/java/org/hypertrace/core/documentstore/mongo/MongoCollection.java
+++ b/document-store/src/main/java/org/hypertrace/core/documentstore/mongo/MongoCollection.java
@@ -332,6 +332,7 @@ private BasicDBObject prepareInsert(Key key, Document document) throws JsonProce
     long now = System.currentTimeMillis();
     BasicDBObject insertDbObject = prepareDocument(key, document, now);
     insertDbObject.put(CREATED_TIME, now);
+    insertDbObject.put(LAST_UPDATE_TIMESTAMP_ISO_8601, new Date(now));
     return insertDbObject;
   }