diff --git a/HTS_etf.py b/HTS_etf.py
index 34ac571..deae8f8 100644
--- a/HTS_etf.py
+++ b/HTS_etf.py
@@ -389,8 +389,6 @@ class HTS_etf(HTS):
 
         avg = {"avg5": [], "avg20": [], "avg60": [], "avg120": [], "avg240": [], "avg480": [], "avg1500": []}
 
-        self.connect2DB("hts.db")
-
         self.cursor.execute('SELECT ymd, hms, close FROM hts WHERE CODE=? order by ymd, hms', (ticker["stock_code"],))
 
         q = self.getQ()
@@ -422,8 +420,6 @@ class HTS_etf(HTS):
             avg["avg480"].append(disparity_avg480)
             avg["avg1500"].append(disparity_avg1500)
 
-        self.disconnect()
-
         disparity = {
             'avg': {},
             "limit_top_1": {"avg5": None, "avg20": None, "avg60": None, "avg120": None, "avg240": None, "avg480": None, "avg1500": None},