diff --git a/.env.example b/.env.example
index 2808916..075038f 100644
--- a/.env.example
+++ b/.env.example
@@ -30,7 +30,7 @@ OKX_HTTP_PROXY=
 BINANCE_FAPI_BASE=https://fapi.binance.com
 BINANCE_EAPI_BASE=https://eapi.binance.com
 BINANCE_FUTURES_WS=wss://fstream.binance.com/stream
-BINANCE_OPTIONS_WS=wss://nbstream.binance.com/eoptions/stream
+BINANCE_OPTIONS_WS=wss://fstream.binance.com/public/stream
 BINANCE_HTTP_PROXY=
 
 PERP_INST_ID=ETH-USDT-SWAP