diff --git a/stockpredictor/analysis/Analyzer.py b/stockpredictor/analysis/Analyzer.py
index 1428f68..867d40c 100644
--- a/stockpredictor/analysis/Analyzer.py
+++ b/stockpredictor/analysis/Analyzer.py
@@ -513,7 +513,7 @@ class Analyzer:
 
                 isbuy = 0
 
-                if stochastic_score < 30 and bolingerband_score < 0.3:
+                if stochastic_score < 20 and bolingerband_score < 0.3:
                     # 종가가 240일선 아래에 있으면 매수한다.
                     if isbuy > 0 and STOCK[last_index]['close'] < STOCK[last_index]['avg240']:
                         isbuy = 1