diff --git a/index.html b/index.html
index bb72bac..0e79298 100644
--- a/index.html
+++ b/index.html
@@ -193,7 +193,7 @@ <h1 class="outside">
    }
   </script>
 
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/tone/13.8.25/Tone.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/tone/14.7.58/Tone.js"></script>
   <script src="https://cdn.jsdelivr.net/npm/@magenta/music@^1.0.0/es6/core.js"></script>
   <script src="https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/1.3.8/FileSaver.min.js" defer></script>
   <script src="script.js"></script>