diff --git a/pyproject.toml b/pyproject.toml
index a282bf9..d85d435 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "sdss-archon"
-version = "0.13.4"
+version = "0.13.5a0"
 description = "A library and actor to communicate with an STA Archon controller."
 authors = ["José Sánchez-Gallego <gallegoj@uw.edu>"]
 license = "BSD-3-Clause"