diff --git a/pyproject.toml b/pyproject.toml
index a073761..eebac09 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ description = "A workflow execution engine supports static DAGs."
 readme = {file = "README.md", content-type = "text/markdown"}
 license = {file = "LICENSE"}
 
-version = "0.3.0"
+version = "0.3.1"
 
 dependencies = [
     "networkx>=3.0",