diff --git a/.github/workflows/test-package.yml b/.github/workflows/test-package.yml
index ff779ee..13d2250 100644
--- a/.github/workflows/test-package.yml
+++ b/.github/workflows/test-package.yml
@@ -44,7 +44,7 @@
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        sdk: [2.17.0, dev]
+        sdk: [3.0.0, dev]
     steps:
       - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - uses: dart-lang/setup-dart@d6a63dab3335f427404425de0fbfed4686d93c4f
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f856f9..4f9e2a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 ## 4.0.3-dev
 
-* Require Dart 2.17
+* Require Dart 3.0
 
 ## 4.0.2
 
diff --git a/analysis_options.yaml b/analysis_options.yaml
index a18a7f7..fc4afe3 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -33,6 +33,7 @@
     - prefer_relative_imports
     - test_types_in_equals
     - unnecessary_await_in_return
+    - unnecessary_breaks
     - use_if_null_to_convert_nulls_to_bools
     - use_raw_strings
     - use_string_buffers
diff --git a/lib/src/chunked_coding/decoder.dart b/lib/src/chunked_coding/decoder.dart
index ac22c1b..5388ae1 100644
--- a/lib/src/chunked_coding/decoder.dart
+++ b/lib/src/chunked_coding/decoder.dart
@@ -88,7 +88,6 @@
           _size = _digitForByte(bytes, start);
           _state = _State.size;
           start++;
-          break;
 
         case _State.size:
           if (bytes[start] == $cr) {
@@ -99,13 +98,11 @@
             _size = (_size << 4) + _digitForByte(bytes, start);
           }
           start++;
-          break;
 
         case _State.sizeBeforeLF:
           assertCurrentChar($lf, 'LF');
           _state = _size == 0 ? _State.endBeforeCR : _State.body;
           start++;
-          break;
 
         case _State.body:
           final chunkEnd = math.min(end, start + _size);
@@ -113,31 +110,26 @@
           _size -= chunkEnd - start;
           start = chunkEnd;
           if (_size == 0) _state = _State.bodyBeforeCR;
-          break;
 
         case _State.bodyBeforeCR:
           assertCurrentChar($cr, 'CR');
           _state = _State.bodyBeforeLF;
           start++;
-          break;
 
         case _State.bodyBeforeLF:
           assertCurrentChar($lf, 'LF');
           _state = _State.boundary;
           start++;
-          break;
 
         case _State.endBeforeCR:
           assertCurrentChar($cr, 'CR');
           _state = _State.endBeforeLF;
           start++;
-          break;
 
         case _State.endBeforeLF:
           assertCurrentChar($lf, 'LF');
           _state = _State.end;
           start++;
-          break;
 
         case _State.end:
           throw FormatException('Expected no more data.', bytes, start);
diff --git a/pubspec.yaml b/pubspec.yaml
index 4e349b1..951b82f 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -5,7 +5,7 @@
 repository: https://github.com/dart-lang/http_parser
 
 environment:
-  sdk: '>=2.17.0 <3.0.0'
+  sdk: ^3.0.0
 
 dependencies:
   collection: ^1.15.0
@@ -14,5 +14,5 @@
   typed_data: ^1.3.0
 
 dev_dependencies:
-  dart_flutter_team_lints: ^0.1.0
+  dart_flutter_team_lints: ^1.0.0
   test: ^1.16.0