diff --git a/README.md b/README.md
index 7680c5d..ebd578e 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@ Depending on the sources you'll be using to generate the list, you'll need to in
 - [Python 3.4+](https://www.python.org/)
 - [coloredlogs](https://pypi.org/project/coloredlogs/) (sorry I can't help myself)
 - [numpy](https://www.numpy.org/)
+- [python-abp](https://pypi.org/project/python-abp/) (only if you intend to use AdBlock rules as a rule source)
 - [jq](http://stedolan.github.io/jq/) (only if you have a Rapid7 API key)
 - [massdns](https://github.com/blechschmidt/massdns) in your `$PATH` (only if you have subdomains as a source)
 - [Firefox](https://www.mozilla.org/firefox/) (only if you have websites as a source)