diff --git a/changelog.md b/changelog.md
new file mode 100644
index 0000000..fae07f3
--- /dev/null
+++ b/changelog.md
@@ -0,0 +1,3 @@
+## [v5.0.0](https://github.com/boywithkeyboard/bytes/releases/tag/v5.0.0)
+
+- **This package is now pure ESM.** Please read [this article](https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c) to learn more.
diff --git a/package-lock.json b/package-lock.json
index 3a315d7..4836789 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@boywithkeyboard/bytes",
-  "version": "4.1.1",
+  "version": "5.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@boywithkeyboard/bytes",
-      "version": "4.1.1",
+      "version": "5.0.0",
       "license": "Apache-2.0",
       "devDependencies": {
         "@boywithkeyboard/builder": "^0.12.0",
diff --git a/package.json b/package.json
index 806136d..03d068a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@boywithkeyboard/bytes",
-  "version": "4.1.1",
+  "version": "5.0.0",
   "author": "Samuel Kopp (https://samuelkopp.de)",
   "license": "Apache-2.0",
   "description": "A disk unit conversion library for JavaScript.",