Bump package to version 4.0.1 (#378)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba7ee5b..c5eaeaa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
-## 4.0.1-dev
+## 4.0.1
 
-* Enforce lint rules found in pedantic 1.11.0.
+* Export `src/emojis.dart` in public API.
+* Update version of example page.
+* Internal: enforce lint rules found in the lints package.
+* Bump io dependency to `^1.0.0`.
 
 ## 4.0.0
 
diff --git a/lib/src/version.dart b/lib/src/version.dart
index ff27850..b42025e 100644
--- a/lib/src/version.dart
+++ b/lib/src/version.dart
@@ -1,2 +1,2 @@
 // Generated code. Do not modify.
-const packageVersion = '4.0.1-dev';
+const packageVersion = '4.0.1';
diff --git a/pubspec.yaml b/pubspec.yaml
index 5a86fd5..59689dd 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: markdown
-version: 4.0.1-dev
+version: 4.0.1
 
 description: A portable Markdown library written in Dart that can parse
  Markdown into HTML.