diff --git a/demo/todo/pubspec.lock b/demo/todo/pubspec.lock
index dca084f5b..927673dc7 100644
--- a/demo/todo/pubspec.lock
+++ b/demo/todo/pubspec.lock
@@ -10,7 +10,7 @@ packages:
       path: "../.."
       relative: true
     source: path
-    version: "0.9.4"
+    version: "0.9.7"
   args:
     description: args
     source: hosted
@@ -50,11 +50,11 @@ packages:
   route_hierarchical:
     description: route_hierarchical
     source: hosted
-    version: "0.4.10"
+    version: "0.4.13"
   shadow_dom:
     description: shadow_dom
     source: hosted
-    version: "0.9.1"
+    version: "0.9.2"
   source_maps:
     description: source_maps
     source: hosted
@@ -66,11 +66,11 @@ packages:
   unittest:
     description: unittest
     source: hosted
-    version: "0.9.3"
+    version: "0.10.0"
   unmodifiable_collection:
     description: unmodifiable_collection
     source: hosted
-    version: "0.9.2"
+    version: "0.9.2+1"
   utf:
     description: utf
     source: hosted
diff --git a/demo/todo/web/main.dart b/demo/todo/web/main.dart
index 5c67d8084..3f34f0a85 100644
--- a/demo/todo/web/main.dart
+++ b/demo/todo/web/main.dart
@@ -5,18 +5,17 @@ import 'todo.dart';
 
 import 'dart:html';
 
-// Everything in the 'todo' library should be preserved by MirrorsUsed
+// Everything in the 'todo' library should be preserved by MirrorsUsed.
 @MirrorsUsed(
-    targets: const['todo'],
+    targets: const ['todo'],
     override: '*')
 import 'dart:mirrors';
 
 main() {
-
   print(window.location.search);
   var module = new Module()
-    ..type(TodoController)
-    ..type(PlaybackHttpBackendConfig);
+      ..type(TodoController)
+      ..type(PlaybackHttpBackendConfig);
 
   // If these is a query in the URL, use the server-backed
   // TodoController.  Otherwise, use the stored-data controller.
@@ -39,5 +38,5 @@ main() {
     module.type(HttpBackend, implementedBy: PlaybackHttpBackend);
   }
 
-  ngBootstrap(module:module);
+  ngBootstrap(module: module);
 }
diff --git a/demo/todo/web/todo.dart b/demo/todo/web/todo.dart
index d287be25c..6b535f93c 100644
--- a/demo/todo/web/todo.dart
+++ b/demo/todo/web/todo.dart
@@ -68,14 +68,6 @@ class TodoController {
     serverController.init(this);
   }
 
-  // workaround for https://github.com/angular/angular.dart/issues/37
-  dynamic operator [](String key) {
-    if (key == 'newItem') {
-      return newItem;
-    }
-    return null;
-  }
-
   add() {
     if (newItem.isEmpty) return;