diff --git a/src/json.ts b/src/json.ts
index 000cd85f2..4ea0b04fd 100644
--- a/src/json.ts
+++ b/src/json.ts
@@ -180,7 +180,8 @@ export type JsonRpcError = OptionalField<
 export const JsonRpcParamsStruct = optional(
   union([record(string(), JsonStruct), array(JsonStruct)]),
 );
-export type JsonRpcParams = Infer<typeof JsonRpcParamsStruct>;
+
+export type JsonRpcParams = Json[] | Record<string, Json>;
 
 export const JsonRpcRequestStruct = object({
   id: JsonRpcIdStruct,