diff --git a/src/agentlab/__init__.py b/src/agentlab/__init__.py
index 2a222a90..a307dc68 100644
--- a/src/agentlab/__init__.py
+++ b/src/agentlab/__init__.py
@@ -1 +1 @@
-__version__ = "v0.3.2.dev0"
+__version__ = "v0.4.0.dev0"