diff --git a/backbone/package.json b/backbone/package.json
old mode 100755
new mode 100644
index d1cb256..48850df
--- a/backbone/package.json
+++ b/backbone/package.json
@@ -3,7 +3,7 @@
   "dependencies": {
     "backbone": "^1.1.2",
     "backbone.localstorage": "^1.1.16",
-    "jquery": "^2.1.3",
+    "jquery": "^3.5.0",
     "todomvc-app-css": "^2.0.0",
     "todomvc-common": "^1.0.1",
     "underscore": "^1.7.0"