diff --git a/README.md b/README.md
index f924ca4b..413e91e3 100644
--- a/README.md
+++ b/README.md
@@ -279,6 +279,7 @@ A curated list of awesome Python frameworks, libraries and software. Inspired by
     * [httpie](https://github.com/jakubroztocil/httpie) - A command line HTTP client, a user-friendly cURL replacement.
     * [percol](https://github.com/mooz/percol) - Adds flavor of interactive selection to the traditional pipe concept on UNIX.
     * [RainbowStream](http://www.rainbowstream.org/) - Smart and nice Twitter client on terminal.
+    * [caniusepython3](https://github.com/brettcannon/caniusepython3) - Determine what projects are blocking you from porting to Python 3.
 
 ## Downloader