diff --git a/requirements.txt b/requirements.txt
index bcb3f3a..55008c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,3 +2,7 @@ flask==1.1.2
 requests==2.23.0
 argparse==1.4.0
 gpxpy==1.4.1
+jinja2==3.0.3
+itsdangerous==2.0.1
+werkzeug==2.0.2
+