diff --git a/README.md b/README.md
index 6d7c20d..0f278fa 100644
--- a/README.md
+++ b/README.md
@@ -112,6 +112,7 @@ You should now be able to send your IoC-containing mails to misp_handler@YOURDOM
 - mail_to_misp requires access to a MISP instance (via API).
 - Python 3
 - urlmarker from https://github.com/rcompton/ryancompton.net/blob/master/assets/praw_drugs/urlmarker.py (contained in this project)
+- ftfy from https://github.com/LuminosoInsight/python-ftfy (to fix unicode text)
 - defang from https://bitbucket.org/johannestaas/defang
 - Patch defang/defang/__init__.py by commenting out the following line (not used && not compatible with Python 3):
 `from urllib2 import urlparse`