diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09f0dbd09b63..ae1bd97eac82 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,15 @@
 -
 
 -->
+## 202x.x.x (unreleased)
+
+### General
+- Fix: syuilo/misskeyの時代からあるインスタンスが改変されたバージョンであると誤認識される問題
+
+### Client
+
+### Server
+
 
 ## 202x.x.x (unreleased)
 
diff --git a/packages/backend/migration/1708266695091-repositoryUrl-from-syuilo-to-misskey-dev.js b/packages/backend/migration/1708266695091-repositoryUrl-from-syuilo-to-misskey-dev.js
new file mode 100644
index 000000000000..e4dbaa16d0f1
--- /dev/null
+++ b/packages/backend/migration/1708266695091-repositoryUrl-from-syuilo-to-misskey-dev.js
@@ -0,0 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export class RepositoryUrlFromSyuiloToMisskeyDev1708266695091 {
+    name = 'RepositoryUrlFromSyuiloToMisskeyDev1708266695091'
+
+    async up(queryRunner) {
+        await queryRunner.query(`UPDATE "meta" SET "repositoryUrl" = 'https://github.com/misskey-dev/misskey' WHERE "repositoryUrl" = 'https://github.com/syuilo/misskey'`);
+    }
+
+    async down(queryRunner) {
+        // no valid down migration
+    }
+}