diff --git a/lib/src/cli/formatter_options.dart b/lib/src/cli/formatter_options.dart
index 9ee0ca5..b44f5dd 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 = '1.3.3';
+const dartStyleVersion = '1.3.4';
 
 /// Global options that affect how the formatter produces and uses its outputs.
 class FormatterOptions {
diff --git a/pubspec.yaml b/pubspec.yaml
index 9d60ca7..38c2dae 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: 1.3.4-dev
+version: 1.3.4
 description: >-
   Opinionated, automatic Dart source code formatter.
   Provides an API and a CLI tool.
diff --git a/tool/grind.dart b/tool/grind.dart
index fc2f019..2ba2966 100644
--- a/tool/grind.dart
+++ b/tool/grind.dart
@@ -117,8 +117,8 @@
   // Update the version constant in formatter_options.dart.
   var versionFile = getFile('lib/src/cli/formatter_options.dart');
   var versionSource = versionFile.readAsStringSync().replaceAll(
-      RegExp(r'const dartStyleVersion = "[^"]+";'),
-      'const dartStyleVersion = "$bumped";');
+      RegExp(r"const dartStyleVersion = '[^']+';"),
+      "const dartStyleVersion = '$bumped';");
   versionFile.writeAsStringSync(versionSource);
 
   // Update the version in the CHANGELOG.