diff --git a/pyproject.toml b/pyproject.toml
index 6a53671..53ad550 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "cschwabpy"
-version = "0.1.0"
+version = "0.0.1"
 description = ""
 authors = ["Tony Wang <ivytony@gmail.com>"]
 readme = "README.md"