diff --git a/docs/rules/complexity.md b/docs/rules/complexity.md
index e70a8989ac1..3a665491c39 100644
--- a/docs/rules/complexity.md
+++ b/docs/rules/complexity.md
@@ -71,7 +71,7 @@ If you can't determine an appropriate complexity limit for your code, then it's
 ## Further Reading
 
 * [Cyclomatic Complexity](https://en.wikipedia.org/wiki/Cyclomatic_complexity)
-* [Complexity Analysis of JavaScript Code](http://ariya.ofilabs.com/2012/12/complexity-analysis-of-javascript-code.html)
+* [Complexity Analysis of JavaScript Code](https://ariya.io/2012/12/complexity-analysis-of-javascript-code)
 * [More about Complexity in JavaScript](https://craftsmanshipforsoftware.com/2015/05/25/complexity-for-javascript/)
 * [About Complexity](https://web.archive.org/web/20160808115119/http://jscomplexity.org/complexity)
 * [Discussion about Complexity in ESLint and more links](https://github.com/eslint/eslint/issues/4808#issuecomment-167795140)