diff --git a/Cargo.toml b/Cargo.toml
index 351afd8..b85e790 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "kelp"
-version = "0.4.0"
+version = "0.5.0"
 edition = "2021"
 authors = ["Taro Yamashita <taro.ymst@gmail.com>"]
 repository = "https://github.com/panther-king/kelp"
diff --git a/README.md b/README.md
index 82f03b2..1eb8667 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ cargo add kelp
 
 ```toml
 [dependencies]
-kelp = "0.4"
+kelp = "0.5"
 ```
 
 Quick Example