diff --git a/app/templates/index.html b/app/templates/index.html
index e36b58d..59240f3 100644
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -13,7 +13,7 @@
     <script type="importmap">
       {
         "imports": {
-          "spessasynth_core": "https://cdn.jsdelivr.net/npm/spessasynth_core@latest/dist/spessasynth_core.mjs"
+          "spessasynth_core": "https://cdn.jsdelivr.net/npm/spessasynth_core@latest/dist/index.js"
         }
       }
     </script>