Bump version.
diff --git a/lib/src/cli/formatter_options.dart b/lib/src/cli/formatter_options.dart
index 509eafb..75c67db 100644
--- a/lib/src/cli/formatter_options.dart
+++ b/lib/src/cli/formatter_options.dart
@@ -13,7 +13,7 @@
import 'summary.dart';
// Note: The following line of code is modified by tool/grind.dart.
-const dartStyleVersion = '1.3.8+1';
+const dartStyleVersion = '1.3.9';
/// Global options that affect how the formatter produces and uses its outputs.
class FormatterOptions {
diff --git a/pubspec.yaml b/pubspec.yaml
index e840178..5221cc3 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
name: dart_style
# Note: See tool/grind.dart for how to bump the version.
-version: 1.3.9-dev
+version: 1.3.9
description: >-
Opinionated, automatic Dart source code formatter.
Provides an API and a CLI tool.
