diff --git a/api/starknet_api_openrpc.json b/api/starknet_api_openrpc.json
index 8a4fc86..79d03a3 100644
--- a/api/starknet_api_openrpc.json
+++ b/api/starknet_api_openrpc.json
@@ -2805,7 +2805,10 @@
                             "version": {
                                 "title": "Version",
                                 "description": "Version of the transaction scheme",
-                                "$ref": "#/components/schemas/FELT"
+                                "type": "string",
+                                "enum": [
+                                    "0x0"
+                                ]
                             },
                             "type": {
                                 "title": "type",