diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a953e7..50e6b4a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [1.11.1] - 2022-08-30
+
 ### Changed
 - Update dependencies (#40).
 
@@ -112,7 +114,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - Conform to cybozu-go/log v1.1.0 spec.
 
 [activation]: http://0pointer.de/blog/projects/socket-activation.html
-[Unreleased]: https://github.com/cybozu-go/cmd/compare/v1.11.0...HEAD
+[Unreleased]: https://github.com/cybozu-go/cmd/compare/v1.11.1...HEAD
+[1.11.1]: https://github.com/cybozu-go/cmd/compare/v1.11.0...v1.11.1
 [1.11.0]: https://github.com/cybozu-go/cmd/compare/v1.10.0...v1.11.0
 [1.10.0]: https://github.com/cybozu-go/cmd/compare/v1.9.0...v1.10.0
 [1.9.0]: https://github.com/cybozu-go/cmd/compare/v1.8.1...v1.9.0