diff --git a/xfuser/__version__.py b/xfuser/__version__.py
index 3d26edf..2f935dd 100644
--- a/xfuser/__version__.py
+++ b/xfuser/__version__.py
@@ -1 +1 @@
-__version__ = "0.4.1"
+__version__ = "0.4.2rc1"