diff --git a/src/api/methods.ts b/src/api/methods.ts
index 8982696..5487e3a 100644
--- a/src/api/methods.ts
+++ b/src/api/methods.ts
@@ -544,7 +544,7 @@ type WebSocketMethods = {
       /**
        * Filter transactions to only receive notification from address list
        */
-      sender_address?: ADDRESS;
+      sender_address?: ADDRESS[];
     };
     result: SUBSCRIPTION_ID;
     errors: Errors.TOO_MANY_ADDRESSES_IN_FILTER;