diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0927b0b..127d608 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+# [1.0.0](https://github.com/mob-sakai/SoftMaskForUGUI/compare/0.9.1...1.0.0) (2021-02-24)
+
+
+### Features
+
+* release 1.0.0 ([127b455](https://github.com/mob-sakai/SoftMaskForUGUI/commit/127b455f38889dfe9a1c6ae5449d2c537d2a4d78))
+
+
+### BREAKING CHANGES
+
+* release 1.0.0
+
 # [1.0.0-preview.14](https://github.com/mob-sakai/SoftMaskForUGUI/compare/v1.0.0-preview.13...v1.0.0-preview.14) (2020-10-08)
 
 
diff --git a/package.json b/package.json
index 89c99ec..df43504 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "com.coffee.softmask-for-ugui",
   "displayName": "UI Soft Mask",
   "description": "UI Soft Mask is a smooth masking component for Unity UI (uGUI) elements.\nBy using SoftMask instead of the default Mask component, you can beautifully represent the rounded edges of UI elements.",
-  "version": "1.0.0-preview.14",
+  "version": "1.0.0",
   "unity": "2017.1",
   "license": "MIT",
   "repository": {