diff --git a/BitgetApi/WebService/WebConnection.cs b/BitgetApi/WebService/WebConnection.cs
index 0dbb0cd..5bbfcd3 100644
--- a/BitgetApi/WebService/WebConnection.cs
+++ b/BitgetApi/WebService/WebConnection.cs
@@ -1169,6 +1169,14 @@ namespace BitgetAPI.WebService
                                             {
                                                 candleData.WebSocketUpdate = true;
                                                 lastCandleData.Close = candleData.Open;
+                                                if(lastCandleData.High < lastCandleData.Close)
+                                                {
+                                                    lastCandleData.High = lastCandleData.Close;
+                                                }
+                                                if (lastCandleData.Low > lastCandleData.Close)
+                                                {
+                                                    lastCandleData.Low = lastCandleData.Close;
+                                                }
                                                 var dt = candleData.Argument;
                                                 dt = dt.AddSeconds(dt.Second * -1);
                                                 dt = dt.AddMilliseconds(dt.Millisecond * -1);