diff --git a/models/contacts/person.sql b/models/contacts/person.sql
index 956d33d2..6ccff678 100644
--- a/models/contacts/person.sql
+++ b/models/contacts/person.sql
@@ -2,10 +2,7 @@
   config(
     materialized = 'incremental',
     unique_key='uuid',
-    indexes=[
-      {'columns': ['uuid'], 'type': 'hash'},
-      {'columns': ['"@timestamp"']},
-    ]
+    on_schema_change='fail'
   )
 }}