diff --git a/requirements.txt b/requirements.txt
index 481bb7f..029edf6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,3 +18,4 @@
 eventlet!=0.18.3,!=0.20.1,>=0.18.2 # MIT
 debtcollector>=1.2.0 # Apache-2.0
 docker  # Apache-2.0
+Jinja2  # BSD License (3 clause)