diff --git a/package.json b/package.json
index 7205cce..06f2b5f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.19.58-rc5",
+  "version": "0.19.58-rc6",
   "description": "Orion Protocol SDK",
   "main": "./lib/index.cjs",
   "module": "./lib/index.js",
diff --git a/src/services/ReferralSystem/index.ts b/src/services/ReferralSystem/index.ts
index 79d0c0f..bd5c860 100644
--- a/src/services/ReferralSystem/index.ts
+++ b/src/services/ReferralSystem/index.ts
@@ -44,6 +44,7 @@ type submitTransactionDataForWidgetPayload = {
   partner_domain: string
   sender_address: string
   tx_hash: string
+  chain_id: number
 }
 
 class ReferralSystem {