diff --git a/src/agentlab/__init__.py b/src/agentlab/__init__.py
index a307dc68..d123ede0 100644
--- a/src/agentlab/__init__.py
+++ b/src/agentlab/__init__.py
@@ -1 +1 @@
-__version__ = "v0.4.0.dev0"
+__version__ = "v0.4.0"