diff --git a/Cargo.toml b/Cargo.toml
index 5494df6..70e6154 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "textspan"
-version = "0.4.1"
+version = "0.5.0"
 license = "MIT"
 authors = ["Yohei Tamura <tamuhey@gmail.com>"]
 edition = "2018"