diff --git a/README.md b/README.md
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@@ -322,7 +322,7 @@ Please read the [contribution guidelines](contributing.md) or the [creating a li
 
 ### Ruby
 
-* [11 Essential Ruby Interview Questions from top 3% developers company](http://www.toptal.com/ruby/interview-questions)
+* [21 Essential Ruby Interview Questions from top 3% developers company](http://www.toptal.com/ruby/interview-questions)
 * [15 Questions to Ask During a Ruby Interview](https://gist.github.com/ryansobol/5252653)
 * [A list of questions about Ruby programming you can use to quiz yourself](https://github.com/undr/ruby-trivia)
 * [The Art of Ruby Technical Interview](http://technology.customink.com/blog/2015/11/23/the-art-of-ruby-technical-interviews/)