diff --git a/CHANGELOG.md b/CHANGELOG.md
index 02077ff..74a82d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 # CHANGELOG
 
-## 0.10.0 (Unreleased)
+## 0.9.3 or 0.10.0 (Unreleased)
+
+### Improvement
+
+- Feat: emit WARN messages if there exist unused and unsupported options specified in configuration file.
+- Docs: `rpxy.io` is now available for the official website of `rpxy`.
+- Refactor: lots of minor improvements
+- Deps
+
 
 ## 0.9.2
 
diff --git a/Cargo.toml b/Cargo.toml
index 522bd41..ce78871 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,5 @@
 [workspace.package]
-version = "0.9.2"
+version = "0.9.3"
 authors = ["Jun Kurihara"]
 homepage = "https://github.com/junkurihara/rust-rpxy"
 repository = "https://github.com/junkurihara/rust-rpxy"