diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a0bc76d..9e902770 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
+## [2.6.18] - 2023-04-21
+
 - Update `cargo-llvm-cov@latest` to 0.5.17.
 
 ## [2.6.17] - 2023-04-20
@@ -751,7 +753,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.6.17...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.6.18...HEAD
+[2.6.18]: https://github.com/taiki-e/install-action/compare/v2.6.17...v2.6.18
 [2.6.17]: https://github.com/taiki-e/install-action/compare/v2.6.16...v2.6.17
 [2.6.16]: https://github.com/taiki-e/install-action/compare/v2.6.15...v2.6.16
 [2.6.15]: https://github.com/taiki-e/install-action/compare/v2.6.14...v2.6.15