diff --git a/airflow/dags/opensearch_indexes.py b/airflow/dags/opensearch_indexes.py
index 05e1e37..272d9f2 100644
--- a/airflow/dags/opensearch_indexes.py
+++ b/airflow/dags/opensearch_indexes.py
@@ -715,18 +715,13 @@ mappings['training'] = {
             "type": "keyword"
         },
         "authors": {
-            "type": "object",
-            "properties": {
-                "author": {
-                    "fields": {
-                        "keyword": {
-                            "type": "keyword",
-                            "ignore_above": 256
-                        }
-                    },
-                    "type": "text"
+            "fields": {
+                "keyword": {
+                    "type": "keyword",
+                    "ignore_above": 256
                 }
-            }
+            },
+            "type": "text"
         },
         "contentResourceType": {
             "type": "keyword"