diff --git a/optuna_dashboard/__init__.py b/optuna_dashboard/__init__.py
index af4de9ef1..9b4568dc7 100644
--- a/optuna_dashboard/__init__.py
+++ b/optuna_dashboard/__init__.py
@@ -9,4 +9,4 @@
 from ._objective_form_widget import register_objective_form_widgets  # noqa
 
 
-__version__ = "0.9.0b3"
+__version__ = "0.9.0b4"