diff --git a/ruby.md b/ruby.md
index f6940fe..a7aff0a 100644
--- a/ruby.md
+++ b/ruby.md
@@ -61,6 +61,7 @@ This list contains ruby libraries related to web scraping and data processing
 * [Ox](https://github.com/ohler55/ox) - A fast XML parser and Object marshaller.
 * [ROXML](https://github.com/Empact/roxml) - Custom mapping and bidirectional marshalling between Ruby and XML using annotation-style class methods, via Nokogiri or LibXML.
 * [equivalent-xml](https://github.com/mbklein/equivalent-xml) - Easy tests of equivalency of XML documents for Nokogiri::XML
+* [nokolexbor](https://github.com/serpapi/nokolexbor) - A performance-focused HTML5 parser for Ruby based on Lexbor. It supports both CSS selectors and XPath.
 
 ## Text Processing