diff --git a/vnpy/gateway/itap/itap_gateway.py b/vnpy/gateway/itap/itap_gateway.py
index 8771ebba..b962ecd2 100644
--- a/vnpy/gateway/itap/itap_gateway.py
+++ b/vnpy/gateway/itap/itap_gateway.py
@@ -171,9 +171,9 @@ class QuoteNotify(ITapQuoteAPINotify):
             pre_close=info.QPreClosingPrice,
             bid_price_1=info.QBidPrice[0],
             bid_price_2=info.QBidPrice[1],
-            bid_price_3=info.QBidPrice[3],
-            bid_price_4=info.QBidPrice[4],
-            bid_price_5=info.QBidPrice[5],
+            bid_price_3=info.QBidPrice[2],
+            bid_price_4=info.QBidPrice[3],
+            bid_price_5=info.QBidPrice[4],
             ask_price_1=info.QAskPrice[0],
             ask_price_2=info.QAskPrice[1],
             ask_price_3=info.QAskPrice[2],