diff --git a/api/starknet_api_openrpc.json b/api/starknet_api_openrpc.json
index 31e4355..de2f1da 100644
--- a/api/starknet_api_openrpc.json
+++ b/api/starknet_api_openrpc.json
@@ -2704,7 +2704,8 @@
                     "finality_status",
                     "execution_status",
                     "execution_resources"
-                ]
+                ],
+                "additionalProperties": false
             },
             "MSG_TO_L1": {
                 "title": "Message to L1",