diff --git a/pyproject.toml b/pyproject.toml
index 449d093..6f446f7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pyrb"
-version = "0.8.12"
+version = "0.9.0"
 description = "Python Rebalancer"
 authors = ["Minki Kim <mingi3314@gmail.com>"]
 readme = "README.md"