diff --git a/package.json b/package.json
index 46a4e63aad..ffd07c5950 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "sharkey",
-	"version": "2025.4.1",
+	"version": "2025.4.2-rc",
 	"codename": "shonk",
 	"repository": {
 		"type": "git",
diff --git a/packages/misskey-js/package.json b/packages/misskey-js/package.json
index 5949b0e2f6..d6073c9861 100644
--- a/packages/misskey-js/package.json
+++ b/packages/misskey-js/package.json
@@ -1,7 +1,7 @@
 {
 	"type": "module",
 	"name": "misskey-js",
-	"version": "2025.4.1",
+	"version": "2025.4.2-rc",
 	"description": "Misskey SDK for JavaScript",
 	"license": "MIT",
 	"main": "./built/index.js",