diff --git a/web/charts/pubspec.lock b/web/charts/pubspec.lock
index 256cc47cc60..eaf17ffc4fd 100644
--- a/web/charts/pubspec.lock
+++ b/web/charts/pubspec.lock
@@ -40,7 +40,7 @@ packages:
       name: logging
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.11.3+2"
+    version: "0.11.4"
   meta:
     dependency: "direct main"
     description:
diff --git a/web/peanut.yaml b/web/peanut.yaml
index 327fc821c4c..47cb657b333 100644
--- a/web/peanut.yaml
+++ b/web/peanut.yaml
@@ -4,11 +4,9 @@ directories:
 - charts/web
 - dad_jokes/web
 - filipino_cuisine/web
-- gallery/web
 - github_dataviz/web
 - particle_background/web
 - slide_puzzle/web
-- spinning_square/web
 - timeflow/web
 - vision_challenge/web
 
diff --git a/web/slide_puzzle/pubspec.lock b/web/slide_puzzle/pubspec.lock
index 8131e19badc..14b65484706 100644
--- a/web/slide_puzzle/pubspec.lock
+++ b/web/slide_puzzle/pubspec.lock
@@ -70,7 +70,7 @@ packages:
       name: coverage
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.13.3+3"
+    version: "0.13.5"
   crypto:
     dependency: transitive
     description:
@@ -122,7 +122,7 @@ packages:
       name: http_multi_server
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.2.0"
   http_parser:
     dependency: transitive
     description:
@@ -157,7 +157,7 @@ packages:
       name: logging
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.11.3+2"
+    version: "0.11.4"
   matcher:
     dependency: transitive
     description:
diff --git a/web/spinning_square/README.md b/web/spinning_square/README.md
deleted file mode 100644
index c78ad194f38..00000000000
--- a/web/spinning_square/README.md
+++ /dev/null
@@ -1,4 +0,0 @@
-Just a spinning square. That's it. Super exciting.
-
-Original source on
-[GitHub](https://github.com/flutter/flutter_web/tree/master/examples/spinning_square).
diff --git a/web/spinning_square/assets/preview.png b/web/spinning_square/assets/preview.png
deleted file mode 100644
index 6e14fb569f4..00000000000
Binary files a/web/spinning_square/assets/preview.png and /dev/null differ
diff --git a/web/spinning_square/lib/main.dart b/web/spinning_square/lib/main.dart
deleted file mode 100644
index bc468dc4ba1..00000000000
--- a/web/spinning_square/lib/main.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright 2018 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-
-class SpinningSquare extends StatefulWidget {
-  @override
-  _SpinningSquareState createState() => new _SpinningSquareState();
-}
-
-class _SpinningSquareState extends State<SpinningSquare>
-    with SingleTickerProviderStateMixin {
-  AnimationController _animation;
-
-  @override
-  void initState() {
-    super.initState();
-    // We use 3600 milliseconds instead of 1800 milliseconds because 0.0 -> 1.0
-    // represents an entire turn of the square whereas in the other examples
-    // we used 0.0 -> math.pi, which is only half a turn.
-    _animation = new AnimationController(
-      duration: const Duration(milliseconds: 3600),
-      vsync: this,
-    )..repeat();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return new RotationTransition(
-        turns: _animation,
-        child: new Container(
-          width: 200.0,
-          height: 200.0,
-          color: const Color(0xFF00FF00),
-        ));
-  }
-
-  @override
-  void dispose() {
-    _animation.dispose();
-    super.dispose();
-  }
-}
-
-void main() {
-  runApp(new Center(child: new SpinningSquare()));
-}
diff --git a/web/spinning_square/pubspec.lock b/web/spinning_square/pubspec.lock
deleted file mode 100644
index 7c07229f877..00000000000
--- a/web/spinning_square/pubspec.lock
+++ /dev/null
@@ -1,43 +0,0 @@
-# Generated by pub
-# See https://dart.dev/tools/pub/glossary#lockfile
-packages:
-  collection:
-    dependency: transitive
-    description:
-      name: collection
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.14.11"
-  flutter:
-    dependency: "direct main"
-    description: flutter
-    source: sdk
-    version: "0.0.0"
-  meta:
-    dependency: transitive
-    description:
-      name: meta
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.8"
-  sky_engine:
-    dependency: transitive
-    description: flutter
-    source: sdk
-    version: "0.0.99"
-  typed_data:
-    dependency: transitive
-    description:
-      name: typed_data
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.6"
-  vector_math:
-    dependency: transitive
-    description:
-      name: vector_math
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.8"
-sdks:
-  dart: ">=2.2.2 <3.0.0"
diff --git a/web/spinning_square/pubspec.yaml b/web/spinning_square/pubspec.yaml
deleted file mode 100644
index 16273591f2f..00000000000
--- a/web/spinning_square/pubspec.yaml
+++ /dev/null
@@ -1,11 +0,0 @@
-name: flutter_web.examples.spinning_square
-
-environment:
-  sdk: ">=2.2.0 <3.0.0"
-
-dependencies:
-  flutter:
-    sdk: flutter
-flutter:
-  assets:
-    - preview.png
\ No newline at end of file
diff --git a/web/spinning_square/web/index.html b/web/spinning_square/web/index.html
deleted file mode 100644
index 1785ebb8b9e..00000000000
--- a/web/spinning_square/web/index.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-  <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-  <title></title>
-  <script defer src="main.dart.js" type="application/javascript"></script>
-</head>
-<body>
-</body>
-</html>