diff --git a/Cargo.toml b/Cargo.toml
index 63d0613..99cf564 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "louds-rs"
-version = "0.5.0"
+version = "0.6.0"
 authors = ["Sho Nakatani <lay.sakura@gmail.com>"]
 description = "High performance LOUDS (Level-Order Unary Degree Sequence) library"
 readme = "README.md"