diff --git a/package-lock.json b/package-lock.json
index f988890..3a2d46b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "stureby-index",
-  "version": "3.3.0",
+  "version": "4.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "stureby-index",
-      "version": "3.3.0",
+      "version": "4.0.0",
       "license": "GPL-3.0",
       "dependencies": {
         "fs-extra": "11.2.0",
diff --git a/package.json b/package.json
index e15d7ae..7491743 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "stureby-index",
-  "version": "3.3.0",
+  "version": "4.0.0",
   "description": "A simple index which will be persisted on the disk during runtime.",
   "main": "index.js",
   "scripts": {