diff --git a/optuna_integration/version.py b/optuna_integration/version.py
index 1ae7c05a..11731085 100644
--- a/optuna_integration/version.py
+++ b/optuna_integration/version.py
@@ -1 +1 @@
-__version__ = "3.2.0.dev"
+__version__ = "3.2.0"