diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 000000000..a7e1061a7
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,3 @@
+# ChangeLog
+## 1.0.0 (2019/10/31)
+* Initial release
diff --git a/README.md b/README.md
index feea041a8..0e4abc9ae 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,6 @@
 <div>
 <h1 align="center">Dolphin</h1>
 <p align="center">Dolphin is a lightweight ActivityPub server optimized for single user  (or few users) use.</p>
-<p align="center"><strong>UNDER DEVELOPMENT</strong></p>
 </div>
 
 <p align="center"><a href="https://www.patreon.com/syuilo"><img src="https://c5.patreon.com/external/logo/become_a_patron_button@2x.png" alt="Become a Patron!" width="160" /></a></p>
diff --git a/package.json b/package.json
index 5b5abe4e0..624d362b0 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "dolphin",
 	"author": "syuilo <i@syuilo.com>",
-	"version": "0.0.0",
+	"version": "1.0.0",
 	"repository": {
 		"type": "git",
 		"url": "https://github.com/syuilo/dolphin.git"