code review updates

diff --git a/pkgs/stream_channel/CHANGELOG.md b/pkgs/stream_channel/CHANGELOG.md
index d15b0c0..4813e9a 100644
--- a/pkgs/stream_channel/CHANGELOG.md
+++ b/pkgs/stream_channel/CHANGELOG.md

@@ -1,4 +1,4 @@
-## 1.6.4+1
+## 1.6.5
 
 * Fix an issue with `JsonDocumentTransformer.bind` where it created an internal
   stream channel which didn't get a properly inferred type for its `sink`.

diff --git a/pkgs/stream_channel/lib/src/json_document_transformer.dart b/pkgs/stream_channel/lib/src/json_document_transformer.dart
index 40e5155..533d238 100644
--- a/pkgs/stream_channel/lib/src/json_document_transformer.dart
+++ b/pkgs/stream_channel/lib/src/json_document_transformer.dart

@@ -38,8 +38,8 @@
 
   StreamChannel<Object> bind(StreamChannel<String> channel) {
     var stream = channel.stream.map(_codec.decode);
-    var sink = new StreamSinkTransformer.fromHandlers(
-        handleData: (Object data, EventSink<String> sink) {
+    var sink = new StreamSinkTransformer<Object, String>.fromHandlers(
+        handleData: (data, sink) {
       sink.add(_codec.encode(data));
     }).bind(channel.sink);
     return new StreamChannel.withCloseGuarantee(stream, sink);

diff --git a/pkgs/stream_channel/pubspec.yaml b/pkgs/stream_channel/pubspec.yaml
index 0917977..9221866 100644
--- a/pkgs/stream_channel/pubspec.yaml
+++ b/pkgs/stream_channel/pubspec.yaml

@@ -1,5 +1,5 @@
 name: stream_channel
-version: 1.6.4+1
+version: 1.6.5
 description: An abstraction for two-way communication channels.
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/stream_channel