diff --git a/pyproject.toml b/pyproject.toml
index c7e7cbc..3c06375 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aiobafi6"
-version = "0.4.0"
+version = "0.5.0-dev"
 description = "Big Ass Fans i6/Haiku protocol asynchronous Python library"
 authors = ["Jean-Francois Roy <jf@devklog.net>"]
 license = "Apache-2.0"