diff --git a/index.html b/index.html
index 90941ec3..bd37209f 100644
--- a/index.html
+++ b/index.html
@@ -1,20 +1,17 @@
 <!doctype html>
 <html lang="ko">
   <head>
-    <!-- Google Tag Manager -->
+    <!-- Google tag (gtag.js) -->
+    <script async src="https://www.googletagmanager.com/gtag/js?id=G-HHZWCY4574"></script>
     <script>
-      (function (w, d, s, l, i) {
-        w[l] = w[l] || [];
-        w[l].push({ "gtm.start": new Date().getTime(), event: "gtm.js" });
-        var f = d.getElementsByTagName(s)[0],
-          j = d.createElement(s),
-          dl = l != "dataLayer" ? "&l=" + l : "";
-        j.async = true;
-        j.src = "https://www.googletagmanager.com/gtm.js?id=" + i + dl;
-        f.parentNode.insertBefore(j, f);
-      })(window, document, "script", "dataLayer", "GTM-WL6BLGHM");
+      window.dataLayer = window.dataLayer || [];
+      function gtag() {
+        dataLayer.push(arguments);
+      }
+      gtag("js", new Date());
+
+      gtag("config", "G-HHZWCY4574");
     </script>
-    <!-- End Google Tag Manager -->
     <meta charset="UTF-8" />
     <link rel="icon" type="image/svg+xml" href="/BEAT.svg" />
     <link rel="mask-icon" href="/BEAT.svg" color="#FF006B" />
@@ -29,16 +26,6 @@
     <title>BEAT</title>
   </head>
   <body>
-    <!-- Google Tag Manager (noscript) -->
-    <noscript
-      ><iframe
-        src="https://www.googletagmanager.com/ns.html?id=GTM-WL6BLGHM"
-        height="0"
-        width="0"
-        style="display: none; visibility: hidden"
-      ></iframe
-    ></noscript>
-    <!-- End Google Tag Manager (noscript) -->
     <div id="root"></div>
     <script type="module" src="/src/main.tsx"></script>
     <script>
