diff --git a/pyproject.toml b/pyproject.toml
index 19a7d6a..073989a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "lvmopstools"
-version = "0.4.1"
+version = "0.4.2a0"
 description = "LVM tools and utilities for operations"
 authors = [
     { name = "José Sánchez-Gallego", email = "gallegoj@uw.edu" }