diff --git a/CHANGELOG.md b/CHANGELOG.md
index d5116185..f85769d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
   - More informative error when specifying an invalid value for `combineWith`
     in JavaScript (in TypeScript this would be a compile time error)
   - Consider also Unicode zero-width spaces as separators in the tokenizer
+  - Use the Unicode flag to simplify the tokenizer regular expression
 
 ## v6.3.0 - 2023-11-22