diff --git a/lib/node_modules/@stdlib/regexp/whitespace/README.md b/lib/node_modules/@stdlib/regexp/whitespace/README.md
index 6ee0e1afc4af..0adb25142d76 100644
--- a/lib/node_modules/@stdlib/regexp/whitespace/README.md
+++ b/lib/node_modules/@stdlib/regexp/whitespace/README.md
@@ -111,6 +111,10 @@ var out = replace( str, reWhitespace.REGEXP_CAPTURE, '$1$1' );
 
 -   Matches one related white space character without the Unicode character property "WSpace=Y" (zero width non-breaking space which was deprecated as of Unicode 3.2).
 
+   **Difference from ECMAScript's `\s`:**  
+ -  Unlike ECMAScript's `\s`, `@stdlib/regexp/whitespace` treats the NEL character (`\u0085`) as whitespace. This difference arises because `@stdlib/regexp/whitespace` aligns with Unicode's definition of whitespace, while ECMAScript's `\s` does not include all Unicode whitespace characters.
+
+
 -   The `REGEXP` regular expression is defined as 
 
     ```text