diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9cd91d45..8bd0145e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,7 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
-- Support `cargo-valgrind`
+- Support `cargo-valgrind`. ([#20](https://github.com/taiki-e/install-action/pull/20), thanks @messense)
 
 ## [1.11.2] - 2022-08-23