diff --git a/x-pack/test/functional/es_archives/endpoint/policy/mappings.json b/x-pack/test/functional/es_archives/endpoint/policy/mappings.json
index 4a9b0bdd11f0b..828085809ad1f 100644
--- a/x-pack/test/functional/es_archives/endpoint/policy/mappings.json
+++ b/x-pack/test/functional/es_archives/endpoint/policy/mappings.json
@@ -499,7 +499,6 @@
         },
         "number_of_replicas": "1",
         "number_of_shards": "1",
-        "prefer_v2_templates": "true",
         "query": {
           "default_field": [
             "message"
diff --git a/x-pack/test/functional/es_archives/endpoint/resolver_tree/api_feature/mappings.json b/x-pack/test/functional/es_archives/endpoint/resolver_tree/api_feature/mappings.json
index 13a16ee4e646d..e69471c212ec0 100644
--- a/x-pack/test/functional/es_archives/endpoint/resolver_tree/api_feature/mappings.json
+++ b/x-pack/test/functional/es_archives/endpoint/resolver_tree/api_feature/mappings.json
@@ -2670,7 +2670,6 @@
         },
         "number_of_replicas": "1",
         "number_of_shards": "1",
-        "prefer_v2_templates": "true",
         "query": {
           "default_field": [
             "message"
@@ -2893,7 +2892,6 @@
         },
         "number_of_replicas": "1",
         "number_of_shards": "1",
-        "prefer_v2_templates": "true",
         "query": {
           "default_field": [
             "message"
diff --git a/x-pack/test/functional/es_archives/reporting/archived_reports/mappings.json b/x-pack/test/functional/es_archives/reporting/archived_reports/mappings.json
index 20f8f840ee863..3c3225a70d47f 100644
--- a/x-pack/test/functional/es_archives/reporting/archived_reports/mappings.json
+++ b/x-pack/test/functional/es_archives/reporting/archived_reports/mappings.json
@@ -100,8 +100,7 @@
       "index": {
         "auto_expand_replicas": "0-1",
         "number_of_replicas": "0",
-        "number_of_shards": "1",
-        "prefer_v2_templates": "false"
+        "number_of_shards": "1"
       }
     }
   }