diff --git a/Cargo.toml b/Cargo.toml
index 28c21796..e3e54956 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "peng_quad"
-version = "0.2.0"
+version = "0.2.1"
 edition = "2021"
 rust-version = "1.76"
 authors = ["Yang Zhou <yangzhou.info@gmail.com>"]