diff --git a/containers/xos/Dockerfile b/containers/xos/Dockerfile
index b5064ae..afc7c9d 100644
--- a/containers/xos/Dockerfile
+++ b/containers/xos/Dockerfile
@@ -50,6 +50,7 @@
     django-timezones \
     djangorestframework==3.3.3 \
     dnslib \
+    jinja2 \
     lxml \
     markdown \
     netaddr \