diff --git a/readme.md b/readme.md
index d4872a1..fcfc24a 100644
--- a/readme.md
+++ b/readme.md
@@ -556,6 +556,7 @@
 - [intern](https://github.com/theintern/intern) - A next-generation code testing stack for JavaScript.
 - [toxy](https://github.com/h2non/toxy) - Hackable HTTP proxy to simulate failure scenarios and network conditions.
 - [hook-std](https://github.com/sindresorhus/hook-std) - Hook and modify stdout/stderr.
+- [testen](https://github.com/egoist/testen) - Run tests for multiple versions of Node.js locally with NVM.
 
 
 ### Benchmarking