diff --git a/data/category-dev b/data/category-dev
index 3021f300..a0203d3b 100644
--- a/data/category-dev
+++ b/data/category-dev
@@ -85,6 +85,7 @@ gnu.org
 # PuTTY and some software official websites.
 greenend.org.uk
 
+hex.pm
 ius.io
 jenkins.io
 js.org