diff --git a/openapi.yaml b/openapi.yaml
index 5887af56..d14f070a 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -344,10 +344,10 @@ components:
     ManifestItem:
       type: object
       properties:
-        rootHash:
+        treeCid:
           $ref: "#/components/schemas/Cid"
           description: "Root hash of the content"
-        originalBytes:
+        datasetSize:
           type: integer
           format: int64
           description: "Length of original content in bytes"