diff --git a/package-lock.json b/package-lock.json
index 370ff07..2e530b1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "socket.io-as-promised",
-  "version": "3.0.2",
+  "version": "4.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "socket.io-as-promised",
-      "version": "3.0.2",
+      "version": "4.0.0",
       "license": "MIT",
       "devDependencies": {
         "@eslint-community/eslint-plugin-eslint-comments": "^4.3.0",
diff --git a/package.json b/package.json
index 2cd92c8..ea08213 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "socket.io-as-promised",
-  "version": "3.0.2",
+  "version": "4.0.0",
   "description": "Socket.IO middleware for supporting returning promises from handlers",
   "type": "module",
   "exports": {