diff --git a/tools/manifest-schema/CHANGELOG.md b/tools/manifest-schema/CHANGELOG.md
new file mode 100644
index 00000000..20bba09a
--- /dev/null
+++ b/tools/manifest-schema/CHANGELOG.md
@@ -0,0 +1,23 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+This project adheres to [Semantic Versioning](https://semver.org).
+
+<!--
+Note: In this file, do not use the hard wrap in the middle of a sentence for compatibility with GitHub comment style markdown rendering.
+-->
+
+## [Unreleased]
+
+## [0.1.1] - 2025-09-20
+
+- Add `HostPlatform::{powerpc64le_linux_gnu,powerpc64le_linux_musl,riscv64_linux_gnu,riscv64_linux_musl,s390x_linux_gnu,s390x_linux_musl}` ([#1133](https://github.com/taiki-e/install-action/pull/1133))
+
+## [0.1.0] - 2025-01-28
+
+Initial release
+
+[Unreleased]: https://github.com/taiki-e/install-action/compare/install-action-manifest-schema-0.1.1...HEAD
+[0.1.1]: https://github.com/taiki-e/install-action/compare/install-action-manifest-schema-0.1.0...install-action-manifest-schema-0.1.1
+[0.1.0]: https://github.com/taiki-e/install-action/releases/tag/install-action-manifest-schema-0.1.0
diff --git a/tools/manifest-schema/Cargo.toml b/tools/manifest-schema/Cargo.toml
index 7966aa64..d34347e1 100644
--- a/tools/manifest-schema/Cargo.toml
+++ b/tools/manifest-schema/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "install-action-manifest-schema"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2021"
 rust-version = "1.79" # Align to cargo-binstall: https://crates.io/crates/cargo-binstall
 license = "Apache-2.0 OR MIT"