diff --git a/HTS_etf_122630.py b/HTS_etf_122630.py
index 0032349..cdb0d11 100644
--- a/HTS_etf_122630.py
+++ b/HTS_etf_122630.py
@@ -207,6 +207,7 @@ class HTS_etf(HTS):
                 if (int(THIS_TIME.strftime("%M")) % 50 == 0 or int(THIS_TIME.strftime("%M")) % 20 == 0):
                     self.slackBot.post_live_to_slack(self.stock_code, self.stock_name, data["close"][len(data["close"])-1], data["macd"][len(data["macd"])-1])
 
+            logFp.flush()
             time.sleep(60)
             THIS_TIME = datetime.now()
 
diff --git a/HTS_etf_233740.py b/HTS_etf_233740.py
index f49caab..30a4b91 100644
--- a/HTS_etf_233740.py
+++ b/HTS_etf_233740.py
@@ -207,6 +207,7 @@ class HTS_etf(HTS):
                 if (int(THIS_TIME.strftime("%M")) % 50 == 0 or int(THIS_TIME.strftime("%M")) % 20 == 0):
                     self.slackBot.post_live_to_slack(self.stock_code, self.stock_name, data["close"][len(data["close"])-1], data["macd"][len(data["macd"])-1])
 
+            logFp.flush()
             time.sleep(60)
             THIS_TIME = datetime.now()
 
diff --git a/HTS_etf_251340.py b/HTS_etf_251340.py
index 8e15f0e..a838d52 100644
--- a/HTS_etf_251340.py
+++ b/HTS_etf_251340.py
@@ -207,6 +207,7 @@ class HTS_etf(HTS):
                 if (int(THIS_TIME.strftime("%M")) % 50 == 0 or int(THIS_TIME.strftime("%M")) % 20 == 0):
                     self.slackBot.post_live_to_slack(self.stock_code, self.stock_name, data["close"][len(data["close"])-1], data["macd"][len(data["macd"])-1])
 
+            logFp.flush()
             time.sleep(60)
             THIS_TIME = datetime.now()
 
diff --git a/HTS_etf_252670.py b/HTS_etf_252670.py
index 659a7a4..44e7c92 100644
--- a/HTS_etf_252670.py
+++ b/HTS_etf_252670.py
@@ -208,6 +208,7 @@ class HTS_etf(HTS):
                 if (int(THIS_TIME.strftime("%M")) % 50 == 0 or int(THIS_TIME.strftime("%M")) % 20 == 0):
                     self.slackBot.post_live_to_slack(self.stock_code, self.stock_name, data["close"][len(data["close"])-1], data["macd"][len(data["macd"])-1])
 
+            logFp.flush()
             time.sleep(60)
             THIS_TIME = datetime.now()