diff --git a/index.js b/index.js
index 4fea7d3..1bc204b 100644
--- a/index.js
+++ b/index.js
@@ -39,7 +39,7 @@ function pageUpdate() {
     for (let index = 0; index < postsArray.length; index++) {
         const item = postsArray[index];
         const absPath = path.join(postsPath, item)
-        const birthtime = fs.statSync(absPath).birthtime
+        const birthtime = fs.statSync(absPath).mtime
 
         posts[birthtime] = {"post": item.substring(0, item.length - 3), "date": birthtime}
     }