diff --git a/README.md b/README.md
index 18f88c9..c619d65 100644
--- a/README.md
+++ b/README.md
@@ -100,6 +100,7 @@ If you are an open source project maintainer, add the label `first-timers-only`
- [BorgBackup](https://github.com/borgbackup/borg/labels/easy) _(label: easy)_
Deduplicating backup program with compression and authenticated encryption.
- [pylearn2](https://github.com/lisa-lab/pylearn2/labels/For%20beginners) _(label: For beginners)_
A Machine Learning library based on Theano.
- [scrapy](https://github.com/scrapy/scrapy/labels/easy) _(label: easy)_
A fast high-level web crawling & scraping framework for Python.
+- [mitmproxy](https://github.com/mitmproxy/mitmproxy/labels/good-first-contribution) _(label: good first contribution)_
An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers
## Ruby