diff --git a/CHANGELOG.md b/CHANGELOG.md
index b8c17e6..193bb32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@
 
 ## [Unreleased] - ReleaseDate
 
+### Changed
+
+- upgrade to `regex` 1.5.6
+
 ## [0.13.0] - 2022-03-05
 
 ### Changed