diff --git a/requirements.txt b/requirements.txt
index ceda25b5..b00d4c57 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,6 @@ zencoder==0.6.5
 amqp==2.1.4
 billiard==3.5.0.2
 Flask-PyMongo==0.4.1
-CommonMark==0.7.2
 cerberus==0.9.2
 events==0.2.2
 future==0.15.2