diff --git a/package-lock.json b/package-lock.json
index 73efc13..e6b93c8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@opengovsg/mockpass",
-  "version": "3.1.3",
+  "version": "4.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@opengovsg/mockpass",
-      "version": "3.1.3",
+      "version": "4.0.0",
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index fd4dc3d..006ddfa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@opengovsg/mockpass",
-  "version": "3.1.3",
+  "version": "4.0.0",
   "description": "A mock SingPass/CorpPass server for dev purposes",
   "main": "index.js",
   "bin": {