diff --git a/pyproject.toml b/pyproject.toml
index 5bc7cfa..c037918 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "dclient"
-version = "0.4"
+version = "0.5a0"
 description = "A client CLI utility for Datasette instances"
 readme = "README.md"
 authors = [{name = "Simon Willison"}]