diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a7f7af..dd3f740 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,14 @@ All notable changes to this project will be documented in this file. Dates are d
 
 Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
-#### [v5.0.0](https://github.com/metalsmith/postcss/compare/v4.2.0...v5.0.0)
+#### [v5.1.0](https://github.com/metalsmith/postcss/compare/v5.0.0...v5.1.0)
+
+- Provides dual ESM/CJS exports [`a44e23a`](https://github.com/metalsmith/postcss/commit/a44e23a5519f24d50c2fed490e525e68300aeaa3)
+- Adds Typescript types support [`d40541e`](https://github.com/metalsmith/postcss/commit/d40541e4200c8435f3b448611720eb559f9b35ad)
+
+### [v5.0.0](https://github.com/metalsmith/postcss/compare/v4.2.0...v5.0.0)
+
+> 20 February 2022
 
 - feat: core plugin alignment, adopted from AXA ch [`d74e3a4`](https://github.com/metalsmith/postcss/commit/d74e3a426e07a76768632359532dbd778fb4e8e4)
 - feat: modernize lib - var to const, Buffer.from, named fn export, lint [`667ce27`](https://github.com/metalsmith/postcss/commit/667ce279950f20c8c781d236eddfc3334e93dc9c)
diff --git a/package-lock.json b/package-lock.json
index 1ac3c84..8e7eee2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@metalsmith/postcss",
-  "version": "5.0.0",
+  "version": "5.1.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@metalsmith/postcss",
-      "version": "5.0.0",
+      "version": "5.1.0",
       "license": "MIT",
       "devDependencies": {
         "assert-dir-equal": "^1.0.1",
diff --git a/package.json b/package.json
index 1243554..14d81be 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@metalsmith/postcss",
-  "version": "5.0.0",
+  "version": "5.1.0",
   "description": "A Metalsmith plugin that sends your CSS through any PostCSS plugins.",
   "keywords": [
     "metalsmith",