diff --git a/index.js b/index.js
index f8477f4..939ed18 100644
--- a/index.js
+++ b/index.js
@@ -19,7 +19,7 @@ let curPrice = null;
 
 async function bootstrap() {
     try {
-        const ohlcv = await ex.fetchOHLCV(cfg.cctxSymbol, cfg.ohlcvInterval, undefined, 672);
+        const ohlcv = await ex.fetchOHLCV(cfg.cctxSymbol, cfg.ohlcvInterval, undefined, 288);
         bars = ohlcv.map(c => ({
             t: c[0],
             o: c[1],
@@ -82,7 +82,7 @@ function initWs() {
                         };
 
                         bars.push(bar);
-                        if (bars.length > 672) bars.shift();
+                        if (bars.length > 288) bars.shift();
 
                         logger.debug('새로운 분봉 수신', {
                             timestamp: new Date(bar.t).toISOString(),