diff --git a/main.js b/main.js
index c9cb562..a5d41da 100644
--- a/main.js
+++ b/main.js
@@ -46,18 +46,29 @@ async function fetchSolanaPrice() {
   }
 }
 
+function pruneOldData() {
+
+  const sixHoursInMilliseconds = 6 * 60 * 60 * 1000;
+  const oneDayInMilliseconds = 24 * 60 * 60 * 1000;
+  const cutoffTime6Hours = Date.now() - sixHoursInMilliseconds;
+  const cutoffTime1Day = Date.now() - oneDayInMilliseconds;
+
+  priceHistory.prices = priceHistory.prices.filter(pricePoint => pricePoint.time > cutoffTime1Day);
+
+  if (priceHistory.prices.length < 360) {
+    console.warn("Warning: Not enough data points for accurate 6-hour calculations.");
+  }
+}
+
 async function fetchSolanaPriceAndUpdateHistory() {
   const currentPrice = await fetchSolanaPrice();
   if (currentPrice) {
+    pruneOldData();
 
-      priceHistory.prices.push({ time: Date.now(), price: currentPrice });
-      priceHistory.currentPrice = currentPrice;
+    priceHistory.prices.push({ time: Date.now(), price: currentPrice });
+    priceHistory.currentPrice = currentPrice;
 
-      if (priceHistory.prices.length > 61) {
-          priceHistory.prices.shift();
-      }
-
-      saveSolanaData(priceHistory);
+    saveSolanaData(priceHistory);
   }
 }