diff --git a/CHANGELOG.md b/CHANGELOG.md
index e99bc041..5a2a3738 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # aws-spot-price changelog
 
+# [1.0.0](https://github.com/hoonoh/aws-spot-price/compare/v0.5.9...v1.0.0) (2020-11-20)
+
+
+### Features
+
+* major update ([#308](https://github.com/hoonoh/aws-spot-price/issues/308)) ([9bd46a5](https://github.com/hoonoh/aws-spot-price/commit/9bd46a51d6574a55fe1a951848fb5b491f3ef88d))
+
+
+### BREAKING CHANGES
+
+* options & outputs changed
+
 ## [0.5.9](https://github.com/hoonoh/aws-spot-price/compare/v0.5.8...v0.5.9) (2020-11-08)
 
 
diff --git a/package.json b/package.json
index 9543ac7b..c25143ba 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "aws-spot-price",
-  "version": "0.5.9",
+  "version": "1.0.0",
   "description": "CLI utility to list current global AWS EC2 Spot Instance prices.",
   "keywords": [
     "aws",