diff --git a/.github/workflows/markdown.yaml b/.github/workflows/markdown.yaml
index e96448b52..4c8be1fee 100644
--- a/.github/workflows/markdown.yaml
+++ b/.github/workflows/markdown.yaml
@@ -70,7 +70,7 @@ jobs:
       matrix:
         # Add macos-latest and/or windows-latest if relevant for this package.
         os: [ubuntu-latest]
-        sdk: [3.2, dev]
+        sdk: [3.4, dev]
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       - uses: dart-lang/setup-dart@e51d8e571e22473a2ddebf0ef8a2123f0ab2c02c
diff --git a/pkgs/markdown/CHANGELOG.md b/pkgs/markdown/CHANGELOG.md
index 4b20f92f9..b67e9751a 100644
--- a/pkgs/markdown/CHANGELOG.md
+++ b/pkgs/markdown/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 * Update the README link to the markdown playground
   (https://dart-lang.github.io/tools).
+* Update `package:web` API references in the example.
+* Require Dart `^3.4.0`.
 
 ## 7.3.0
 
diff --git a/pkgs/markdown/example/app.dart b/pkgs/markdown/example/app.dart
index 14b8f1937..51d560f19 100644
--- a/pkgs/markdown/example/app.dart
+++ b/pkgs/markdown/example/app.dart
@@ -40,10 +40,10 @@ final extensionSets = {
 };
 
 void main() {
-  versionSpan.text = 'v${md.version}';
+  versionSpan.textContent = 'v${md.version}';
   markdownInput.onKeyUp.listen(_renderMarkdown);
 
-  final savedMarkdown = window.localStorage['markdown'];
+  final savedMarkdown = window.localStorage.getItem('markdown');
 
   if (savedMarkdown != null &&
       savedMarkdown.isNotEmpty &&
@@ -57,7 +57,7 @@ void main() {
 
   // GitHub is the default extension set.
   gfmRadio.attributes.getNamedItem('checked')?.value = '';
-  gfmRadio.querySelector('.glyph')!.text = 'radio_button_checked';
+  gfmRadio.querySelector('.glyph')!.textContent = 'radio_button_checked';
   extensionSet = extensionSets[gfmRadio.id];
   _renderMarkdown();
 
@@ -82,7 +82,7 @@ void _renderMarkdown([Event? event]) {
 
   if (event != null) {
     // Not simulated typing. Store it.
-    window.localStorage['markdown'] = markdown;
+    window.localStorage.setItem('markdown', markdown);
   }
 }
 
@@ -110,19 +110,21 @@ void _switchFlavor(Event e) {
   if (target.attributes.getNamedItem('checked') == null) {
     if (basicRadio != target) {
       basicRadio.attributes.safeRemove('checked');
-      basicRadio.querySelector('.glyph')!.text = 'radio_button_unchecked';
+      basicRadio.querySelector('.glyph')!.textContent =
+          'radio_button_unchecked';
     }
     if (commonmarkRadio != target) {
       commonmarkRadio.attributes.safeRemove('checked');
-      commonmarkRadio.querySelector('.glyph')!.text = 'radio_button_unchecked';
+      commonmarkRadio.querySelector('.glyph')!.textContent =
+          'radio_button_unchecked';
     }
     if (gfmRadio != target) {
       gfmRadio.attributes.safeRemove('checked');
-      gfmRadio.querySelector('.glyph')!.text = 'radio_button_unchecked';
+      gfmRadio.querySelector('.glyph')!.textContent = 'radio_button_unchecked';
     }
 
     target.attributes.getNamedItem('checked')?.value = '';
-    target.querySelector('.glyph')!.text = 'radio_button_checked';
+    target.querySelector('.glyph')!.textContent = 'radio_button_checked';
     extensionSet = extensionSets[target.id];
     _renderMarkdown();
   }
diff --git a/pkgs/markdown/pubspec.yaml b/pkgs/markdown/pubspec.yaml
index 3a713831b..a7a5bdaab 100644
--- a/pkgs/markdown/pubspec.yaml
+++ b/pkgs/markdown/pubspec.yaml
@@ -12,7 +12,7 @@ executables:
   markdown:
 
 environment:
-  sdk: ^3.2.0
+  sdk: ^3.4.0
 
 dependencies:
   args: ^2.0.0
@@ -31,5 +31,5 @@ dev_dependencies:
   pool: ^1.5.1
   tar: ^1.0.3
   test: ^1.16.0
-  web: '>=0.4.2 <2.0.0'
+  web: ^1.0.0
   yaml: ^3.0.0