diff --git a/versions/1/integration/data_stream/fields/fields.spec.yml b/versions/1/integration/data_stream/fields/fields.spec.yml
index 770a0d5b0..dcf2a736d 100644
--- a/versions/1/integration/data_stream/fields/fields.spec.yml
+++ b/versions/1/integration/data_stream/fields/fields.spec.yml
@@ -6,7 +6,7 @@ spec:
   type: array
   items:
     type: object
-    additionalProperties: false
+    additionalProperties: true
     properties:
       name:
         description: >
@@ -268,6 +268,6 @@ spec:
           fields.
         type: boolean
         default: false
-        
+
     required:
     - name