diff --git a/CHANGELOG.md b/CHANGELOG.md
index 861648c..5a98751 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
 CHANGELOG
 =======================================
 
-## Unreleased
+## 2024.5.6
 
 ### General
 -
diff --git a/package.json b/package.json
index 887c0ae..63c520f 100644
--- a/package.json
+++ b/package.json
@@ -1,4 +1,4 @@
 {
   "name": "sandbox-actions-release",
-  "version": "2024.5.5"
+  "version": "2024.5.6-beta.0"
 }
diff --git a/packages/misskey-js/package.json b/packages/misskey-js/package.json
index 68dc1f6..618a602 100644
--- a/packages/misskey-js/package.json
+++ b/packages/misskey-js/package.json
@@ -1,4 +1,4 @@
 {
   "name": "sandbox-actions-release-misskey-js",
-  "version": "2024.5.5"
+  "version": "2024.5.6-beta.0"
 }