diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a405a1c4..0e8f259c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Handle utilities with `1` keys in a JS config  ([#19254](https://github.com/tailwindlabs/tailwindcss/pull/19254))
+
 ### Added
 
 - _Experimental_: Add `@container-size` utility ([#18901](https://github.com/tailwindlabs/tailwindcss/pull/18901))