diff --git a/Changelog.md b/Changelog.md
index 07fb82d..a2275c3 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,9 @@
 # Changelog for webextension-rpc
 
+## 0.3.0 (2022-07-30)
+
+- Replace functions with classes: `RpcClient`/`RpcServer`. (**Breaking**)
+
 ## 0.2.0 (2022-07-24)
 
 - Convert to TypeScript.
diff --git a/package-lock.json b/package-lock.json
index 4002c6f..7e9cce3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "webextension-rpc",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "webextension-rpc",
-      "version": "0.2.0",
+      "version": "0.3.0",
       "license": "CC0-1.0",
       "devDependencies": {
         "@types/firefox-webext-browser": "^94.0.1",
diff --git a/package.json b/package.json
index 8f8d1da..e326e30 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "webextension-rpc",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "description": "Remote Procedure Call implementation for WebExtensions, to easily call functions across content scripts and background script.",
   "main": "./lib/index.js",
   "types": "./lib/index.d.ts",
@@ -18,7 +18,9 @@
       "types": "./lib/RpcServer.d.ts"
     }
   },
-  "files": ["lib"],
+  "files": [
+    "lib"
+  ],
   "scripts": {
     "prepare": "tsc",
     "test": "ava"