diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..84d2c0c
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,4 @@
+# CHANGELOG
+## v1.0.0 (2018-08-15)
+
+* first version
diff --git a/README.md b/README.md
index d1c7321..5fe79e0 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # Ansible role: PHP FPM
-[![Version](https://img.shields.io/badge/latest_version-1.0.0-dev-green.svg)](https://git.yaegashi.fr/nishiki/ansible-role-phpfpm/releases)
+[![Version](https://img.shields.io/badge/latest_version-1.0.0-green.svg)](https://git.yaegashi.fr/nishiki/ansible-role-phpfpm/releases)
 [![Build Status](https://travis-ci.org/nishiki/ansible-role-phpfpm.svg?branch=master)](https://travis-ci.org/nishiki/ansible-role-phpfpm)
 [![License](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](https://git.yaegashi.fr/nishiki/ansible-role-phpfpm/src/branch/master/LICENSE)