diff --git a/CHANGELOG.md b/CHANGELOG.md
index d6d3167e..a2e98975 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]
 
+## [2.73.0] - 2026-04-05
+
 - Introduce [dependency cooldown](https://blog.yossarian.net/2025/11/21/We-should-all-be-using-dependency-cooldowns) when installing with `taiki-e/install-action@<tool_name>`, `tool: <tool_name>@latest`, or `tool: <tool_name>@<omitted_version>` to mitigate the risk of supply chain attacks by default. ([#1666](https://github.com/taiki-e/install-action/pull/1666))
 
   This action without this cooldown already takes a few hours to a few days for new releases to be reflected (as with other common package managers that verify checksums or signatures), so this should not affect most users.
@@ -6145,7 +6147,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.72.0...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.73.0...HEAD
+[2.73.0]: https://github.com/taiki-e/install-action/compare/v2.72.0...v2.73.0
 [2.72.0]: https://github.com/taiki-e/install-action/compare/v2.71.3...v2.72.0
 [2.71.3]: https://github.com/taiki-e/install-action/compare/v2.71.2...v2.71.3
 [2.71.2]: https://github.com/taiki-e/install-action/compare/v2.71.1...v2.71.2