diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c6adc8..ae5282c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [5.0.0](https://github.com/eslint/eslint-plugin-markdown/compare/v4.0.1...v5.0.0) (2024-04-29)
+
+
+### ⚠ BREAKING CHANGES
+
+* map known code block languages to respective file extensions ([#246](https://github.com/eslint/eslint-plugin-markdown/issues/246))
+
+### Features
+
+* map known code block languages to respective file extensions ([#246](https://github.com/eslint/eslint-plugin-markdown/issues/246)) ([096cff4](https://github.com/eslint/eslint-plugin-markdown/commit/096cff4094dc9118a3538980ee56bfb8c5cb03d4))
+
+
+### Bug Fixes
+
+* check upper bounds of message line numbers for code blocks ([#247](https://github.com/eslint/eslint-plugin-markdown/issues/247)) ([00adccb](https://github.com/eslint/eslint-plugin-markdown/commit/00adccb49ed74e6b6ce43bc221a93d7c6782a83c))
+
 ## [4.0.1](https://github.com/eslint/eslint-plugin-markdown/compare/v4.0.0...v4.0.1) (2024-03-06)
 
 
diff --git a/package.json b/package.json
index 804cb29..c61f19e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eslint-plugin-markdown",
-  "version": "4.0.1",
+  "version": "5.0.0",
   "description": "An ESLint plugin to lint JavaScript in Markdown code fences.",
   "license": "MIT",
   "author": {