diff --git a/package-lock.json b/package-lock.json
index 0aeac08..e0c8e65 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@uttori/wiki",
-  "version": "3.4.1",
+  "version": "4.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index cf9bc01..2e53c39 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@uttori/wiki",
-  "version": "3.4.1",
+  "version": "4.0.0",
   "description": "Uttori Wiki is a wiki functionality module for Uttori.",
   "author": "Matthew Callis <matthew.callis@gmail.com>",
   "contributors": [],