diff --git a/assets/spinner.avif b/assets/spinner.avif
new file mode 100644
index 0000000..3db35b1
Binary files /dev/null and b/assets/spinner.avif differ
diff --git a/index.html b/index.html
index 686088d..feb7c48 100644
--- a/index.html
+++ b/index.html
@@ -82,7 +82,7 @@
   <body>
     <div class="container">
       <canvas id="canvas" oncontextmenu="event.preventDefault()"></canvas>
-      <img id="spinner" src="assets/spinner.png" />
+      <img id="spinner" src="assets/spinner.avif" />
       <script>
         const spinner = document.getElementById("spinner");
         spinner.classList.add("display");
