diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e34067658..a8e335b5f0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## Unreleased
+## 2025.6.3
 
 ### Client
 - Fix: キャッシュを削除しないとクライアントが使用できないことがある問題を修正
diff --git a/package.json b/package.json
index d417630114..4621517e83 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "misskey",
-	"version": "2025.6.2",
+	"version": "2025.6.3-alpha.0",
 	"codename": "nasubi",
 	"repository": {
 		"type": "git",
diff --git a/packages/misskey-js/package.json b/packages/misskey-js/package.json
index b5fc6ff6fa..2518d91134 100644
--- a/packages/misskey-js/package.json
+++ b/packages/misskey-js/package.json
@@ -1,7 +1,7 @@
 {
 	"type": "module",
 	"name": "misskey-js",
-	"version": "2025.6.2",
+	"version": "2025.6.3-alpha.0",
 	"description": "Misskey SDK for JavaScript",
 	"license": "MIT",
 	"main": "./built/index.js",