diff --git a/x-pack/test/functional/es_archives/fleet/agents/data.json b/x-pack/test/functional/es_archives/fleet/agents/data.json
index 9cbfb31771917..c317aad8ba05b 100644
--- a/x-pack/test/functional/es_archives/fleet/agents/data.json
+++ b/x-pack/test/functional/es_archives/fleet/agents/data.json
@@ -219,7 +219,7 @@
           "metrics"
         ],
         "revision": 2,
-        "updated_on": "2020-05-07T19:34:42.533Z",
+        "updated_at": "2020-05-07T19:34:42.533Z",
         "updated_by": "system",
         "id": "config1"
       }
diff --git a/x-pack/test/functional/es_archives/fleet/agents/mappings.json b/x-pack/test/functional/es_archives/fleet/agents/mappings.json
index 7bdcb35dae00a..0b84514de23f2 100644
--- a/x-pack/test/functional/es_archives/fleet/agents/mappings.json
+++ b/x-pack/test/functional/es_archives/fleet/agents/mappings.json
@@ -1829,7 +1829,7 @@
             "updated_by": {
               "type": "keyword"
             },
-            "updated_on": {
+            "updated_at": {
               "type": "keyword"
             }
           }