diff --git a/rest-api-spec/src/main/resources/rest-api-spec/api/update.json b/rest-api-spec/src/main/resources/rest-api-spec/api/update.json
index 37a04cbae28..20fc3524283 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/api/update.json
+++ b/rest-api-spec/src/main/resources/rest-api-spec/api/update.json
@@ -82,10 +82,6 @@
           "type": "enum",
           "options": ["internal", "force"],
           "description": "Specific version type"
-        },
-        "detect_noop": {
-          "type": "boolean",
-          "description": "Specifying as true will cause Elasticsearch to check if there are changes and, if there aren’t, turn the update request into a noop."
         }
       }
     },