diff --git a/package-lock.json b/package-lock.json
index 1292298..7701fb4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "idn-area",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "idn-area",
-      "version": "4.0.0",
+      "version": "4.0.1",
       "license": "MIT",
       "dependencies": {
         "@fastify/static": "^6.12.0",
diff --git a/package.json b/package.json
index b16b37c..e083b6a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "idn-area",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "description": "API that provides information about Indonesia administrative area.",
   "author": "Fityan",
   "private": false,