diff --git a/backend.yml b/backend.yml
index c4b5229..64f1075 100644
--- a/backend.yml
+++ b/backend.yml
@@ -442,16 +442,22 @@ components:
         inputNeighbour:
           type: string
           format: uuid
-        outputNeighbours:
+        children:
           type: array
           items:
-            type: string
-            format: uuid
-        outputURLs:
+            type: object
+            properties:
+              url:
+                type: string
+                format: uuid
+        output_urls:
           type: array
           items:
-            type: string
-            format: url
+            type: object
+            properties:
+              url:
+                type: string
+                format: url
         bitrate:
           type: integer
         width: