diff --git a/CHANGELOG.md b/CHANGELOG.md
index b90448c..1349367 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,3 +6,8 @@
 ## 0.2.0-beta
 - Fix and refactoring some example codes.
 - Add CircleCI configuration
+
+## 1.0.0
+- Add optional form data feature.
+- Bug fixes.
+- Add test codes.
diff --git a/package.json b/package.json
index 32ed83c..0de1983 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "presto.js",
-  "version": "0.2.0-beta",
+  "version": "1.0.0",
   "description": "JavaScript library for simultaneous file upload",
   "author": "Yu Watanabe <watanabe.yu.1203@gmail.com>",
   "repository": {