diff --git a/pubspec.lock b/pubspec.lock
index e7bb544f5f..d881b83466 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -664,26 +664,26 @@ packages:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: e45c31f458d01fd9ef4a214feb2e153b72d5b1907435f4332b1637a2f348c021
+      sha256: "78eb209deea09858f5269f5a5b02be4049535f568c07b275096836f01ea323fa"
       url: "https://pub.dev"
     source: hosted
-    version: "9.0.18"
+    version: "10.0.0"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
       name: leak_tracker_flutter_testing
-      sha256: "54808cfcfa87dbc0d74c61ac063d624adf1bd5c0407301f32b06c783c60dc4ca"
+      sha256: b46c5e37c19120a8a01918cfaf293547f47269f7cb4b0058f21531c2465d6ef0
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.0"
+    version: "2.0.1"
   leak_tracker_testing:
     dependency: transitive
     description:
       name: leak_tracker_testing
-      sha256: "7e71be3c161472f6c9158ac8875dd8de575060d60b5d159ebca3600ea32c9116"
+      sha256: a597f72a664dbd293f3bfc51f9ba69816f84dcd403cdac7066cb3f6003f3ab47
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.6"
+    version: "2.0.1"
   lints:
     dependency: transitive
     description:
@@ -1290,5 +1290,5 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.3.0-244.0.dev <4.0.0"
-  flutter: ">=3.18.0-18.0.pre.10"
+  dart: ">=3.3.0-276.0.dev <4.0.0"
+  flutter: ">=3.18.0-18.0.pre.98"
diff --git a/pubspec.yaml b/pubspec.yaml
index f41b40f2d4..aec61e258c 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -24,8 +24,8 @@ environment:
   # that by the time we want to release, these will have become stable.
   # TODO: Before general release, switch to stable Flutter and Dart versions,
   #   or pin exact versions: https://github.com/zulip/zulip-flutter/issues/15
-  sdk: '>=3.3.0-244.0.dev <4.0.0'
-  flutter: '>=3.18.0-18.0.pre.10'
+  sdk: '>=3.3.0-276.0.dev <4.0.0'
+  flutter: '>=3.18.0-18.0.pre.98'
 
 # Dependencies specify other packages that your package needs in order to work.
 # To automatically upgrade your package dependencies to the latest versions
diff --git a/test/widgets/content_test.dart b/test/widgets/content_test.dart
index f97f348fa6..c4c19b75ff 100644
--- a/test/widgets/content_test.dart
+++ b/test/widgets/content_test.dart
@@ -62,6 +62,13 @@ void main() {
     });
   });
 
+  Future<void> tapText(WidgetTester tester, Finder textFinder) async {
+    final height = tester.getSize(textFinder).height;
+    final target = tester.getTopLeft(textFinder)
+      .translate(height/4, height/2); // aim for middle of first letter
+    await tester.tapAt(target);
+  }
+
   group('LinkNode interactions', () {
     // The Flutter test font uses square glyphs, so width equals height:
     //   https://github.com/flutter/flutter/wiki/Flutter-Test-Fonts
@@ -85,7 +92,7 @@ void main() {
       await prepareContent(tester,
         '<p><a href="https://example/">hello</a></p>');
 
-      await tester.tap(find.text('hello'));
+      await tapText(tester, find.text('hello'));
       check(testBinding.takeLaunchUrlCalls())
         .single.equals((url: Uri.parse('https://example/'), mode: LaunchMode.platformDefault));
     }, variant: const TargetPlatformVariant({TargetPlatform.android, TargetPlatform.iOS}));
@@ -111,7 +118,7 @@ void main() {
     testWidgets('link nested in other spans', (tester) async {
       await prepareContent(tester,
         '<p><strong><em><a href="https://a/">word</a></em></strong></p>');
-      await tester.tap(find.text('word'));
+      await tapText(tester, find.text('word'));
       check(testBinding.takeLaunchUrlCalls())
         .single.equals((url: Uri.parse('https://a/'), mode: LaunchMode.platformDefault));
     });
@@ -134,7 +141,7 @@ void main() {
     testWidgets('relative links are resolved', (tester) async {
       await prepareContent(tester,
         '<p><a href="/a/b?c#d">word</a></p>');
-      await tester.tap(find.text('word'));
+      await tapText(tester, find.text('word'));
       check(testBinding.takeLaunchUrlCalls())
         .single.equals((url: Uri.parse('${eg.realmUrl}a/b?c#d'), mode: LaunchMode.platformDefault));
     });
@@ -142,7 +149,7 @@ void main() {
     testWidgets('link inside HeadingNode', (tester) async {
       await prepareContent(tester,
         '<h6><a href="https://a/">word</a></h6>');
-      await tester.tap(find.text('word'));
+      await tapText(tester, find.text('word'));
       check(testBinding.takeLaunchUrlCalls())
         .single.equals((url: Uri.parse('https://a/'), mode: LaunchMode.platformDefault));
     });
@@ -151,7 +158,7 @@ void main() {
       await prepareContent(tester,
         '<p><a href="file:///etc/bad">word</a></p>');
       testBinding.launchUrlResult = false;
-      await tester.tap(find.text('word'));
+      await tapText(tester, find.text('word'));
       await tester.pump();
       check(testBinding.takeLaunchUrlCalls())
         .single.equals((url: Uri.parse('file:///etc/bad'), mode: LaunchMode.platformDefault));
@@ -187,7 +194,7 @@ void main() {
       final pushedRoutes = await prepareContent(tester,
         html: '<p><a href="/#narrow/stream/1-check">stream</a></p>');
 
-      await tester.tap(find.text('stream'));
+      await tapText(tester, find.text('stream'));
       check(testBinding.takeLaunchUrlCalls()).isEmpty();
       check(pushedRoutes).single.isA<WidgetRoute>()
         .page.isA<MessageListPage>().narrow.equals(const StreamNarrow(1));
@@ -198,7 +205,7 @@ void main() {
       final pushedRoutes = await prepareContent(tester,
         html: '<p><a href="/#narrow/stream/1-check/topic">invalid</a></p>');
 
-      await tester.tap(find.text('invalid'));
+      await tapText(tester, find.text('invalid'));
       final expectedUrl = eg.realmUrl.resolve('/#narrow/stream/1-check/topic');
       check(testBinding.takeLaunchUrlCalls())
         .single.equals((url: expectedUrl, mode: LaunchMode.platformDefault));