1 files changed, 2 insertions, 0 deletions

diff --git a/heroku.yml b/heroku.yml
index 4aec2d1..b734a85 100644
--- a/heroku.yml
+++ b/heroku.yml
@@ -4,5 +4,7 @@ setup:
 build:
   languages:
     - python
+  packages:
+    - whois
 run:
   web: 'gunicorn app:app'