diff --git a/README.md b/README.md
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+++ b/README.md
@@ -82,7 +82,7 @@ This should be updated fairly regularly. As usual, **pull requests are encourage
 * [Slate](https://github.com/slatedocs/slate) - Static API documentation creation tool from the team at Tripit.
 * [MireDot](http://www.miredot.com) - REST API documentation generator for Java. Plugs into your build process and generates a searchable html page. (contributed by [bertvh](https://github.com/bertvh))
 * [codo](https://github.com/coffeedoc/codo) - CoffeeScript API documentation generator, similar to YARD. (contributed by [Logan Koester](http://github.com/logankoester))
-* [Flatdoc](http://ricostacruz.com/flatdoc/) - Create well designed open source documentation from Github repository README files or simple Markdown files. (contributed by [@moore](http://twitter.com/moore))
+* [Flatdoc](https://ricostacruz.com/flatdoc/) - Create well designed open source documentation from Github repository README files or simple Markdown files. (contributed by [@moore](http://twitter.com/moore))
 * [GitBook](https://github.com/GitbookIO/gitbook) - Utility for generating documentation, books and exercises using GitHub/Git and Markdown. (contributed by [Samy Pessé](https://github.com/SamyPesse))
 * [Daux](https://github.com/justinwalsh/daux.io) - A documentation generator that uses a simple folder structure and Markdown files to create custom documentation on the fly. It helps you create great looking documentation in a developer friendly way. (contributed by [veshinak](https://github.com/veshinak))
 * [comment.js](https://github.com/dciccale/comment.js) - Simple API documentation generator. (contributed by [@dciccale](https://github.com/diccale))