diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5b0a9d..b3f9020 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ Which is based on [Keep A Changelog](http://keepachangelog.com/)
 
 ## Unreleased
 
+## v1.0.0 - 2019-08-14
+
 ### Added
 
 - Fetch data on openweathermap.org
diff --git a/README.md b/README.md
index 77008d5..803774a 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Weather
 
-[![Version](https://img.shields.io/badge/latest_version-1.0.0_dev-green.svg)](https://git.yaegashi.fr/nishiki/weather/releases)
+[![Version](https://img.shields.io/badge/latest_version-1.0.0-green.svg)](https://git.yaegashi.fr/nishiki/weather/releases)
 [![License](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](https://git.yaegashi.fr/nishiki/weather/src/branch/master/LICENSE)
 
 weather is a small program that fetch weather informations, and store them to influxdb