diff --git a/requirements.txt b/requirements.txt
index 90d4f7eed..008ca6ab8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 Flask==1.1.2
 Werkzeug==1.0.1
+Jinja2==2.11.2
 Flask-SQLAlchemy==2.4.3
 Flask-Caching==1.8.0
 Flask-Migrate==2.5.3