diff --git a/src/validators/utils.py b/src/validators/utils.py
index 6d16b23c..7b6e82e3 100644
--- a/src/validators/utils.py
+++ b/src/validators/utils.py
@@ -43,7 +43,7 @@
 
 async def send_approval_requests(oracles: Oracles, request: ApprovalRequest) -> tuple[bytes, str]:
     """Requests approval from all oracles."""
-    payload = dataclasses.asdict(request)
+    payload = request.as_json_dict()
     endpoints = list(zip(oracles.addresses, oracles.endpoints))
 
     ipfs_hashes = []