diff --git a/requirements.txt b/requirements.txt
index 001f184..a8d6045 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,6 +34,7 @@ ipaddress==1.0.16
 itsdangerous==0.24
 Jinja2==2.8
 MarkupSafe==0.23
+markdown==2.6.7
 ndg-httpsclient==0.4.0
 oauth2client==3.0.0
 oauthlib==1.1.2