diff --git a/package.json b/package.json
index 0f1f866..9a6f8e4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ainize-team/ainize-js",
-  "version": "1.1.3",
+  "version": "1.2.0",
   "main": "dist/ainize.js",
   "types": "dist/ainize.d.ts",
   "scripts": {
diff --git a/src/constants.ts b/src/constants.ts
index bc9f189..91bc1d8 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -1,11 +1,11 @@
 import { appBillingConfig } from "./types/type"
 
-export const getBlockChainAPIEndpoint = (chainId: number) =>{
+export const getBlockChainAPIEndpoint = (chainId: number) => {
   return chainId === 1 ? "https://mainnet-api.ainetwork.ai" : "https://testnet-api.ainetwork.ai"
 }
 
-export const getBlockChainEventEndpoint = (chainId: number) =>{
-  return chainId === 1 ? "https://mainnet-event.ainetwork.ai" : "https://testnet-event.ainetwork.ai"
+export const getBlockChainEventEndpoint = (chainId: number) => {
+  return chainId === 1 ? "wss://mainnet-event.ainetwork.ai" : "wss://testnet-event.ainetwork.ai"
 }
 
 export const Path = {