diff --git a/package-lock.json b/package-lock.json
index b154fab..4998505 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "pokedex.js",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "pokedex.js",
-      "version": "4.0.0",
+      "version": "4.0.1",
       "license": "MIT",
       "devDependencies": {
         "@types/chai": "^4.3.6",
diff --git a/package.json b/package.json
index 92aaf33..d462090 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "pokedex.js",
   "description": "Get/Search Pokémon information!",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "author": "ytakahashi <yt01tc@gmail.com>",
   "bugs": "https://github.com/ytakahashi/pokedex.js/issues",
   "devDependencies": {