diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1525d69..64611d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Others
+
+* update version of [Checkout](https://github.com/marketplace/actions/checkout) action
+
 ## [1.6.4] - 2020-01-27
 
 ### Fixed