diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00b795d..616223a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 - Require Dart 3.0
 - Add chunked decoding support (`startChunkedConversion`) for `CodePage`
   encodings.
+- Upper-cast the return type of the decoder from `List<int>` to `Uint8List`.
 
 ## 3.1.1
 
diff --git a/lib/src/hex/decoder.dart b/lib/src/hex/decoder.dart
index 848a4ae..3696d4d 100644
--- a/lib/src/hex/decoder.dart
+++ b/lib/src/hex/decoder.dart
@@ -19,10 +19,13 @@ class HexDecoder extends Converter<String, List<int>> {
   const HexDecoder._();
 
   @override
-  List<int> convert(String input) {
+  Uint8List convert(String input) {
     if (!input.length.isEven) {
       throw FormatException(
-          'Invalid input length, must be even.', input, input.length);
+        'Invalid input length, must be even.',
+        input,
+        input.length,
+      );
     }
 
     var bytes = Uint8List(input.length ~/ 2);