diff --git a/Heroku_main/requirements.txt b/Heroku_main/requirements.txt
index b61379e..7b0bf3e 100644
--- a/Heroku_main/requirements.txt
+++ b/Heroku_main/requirements.txt
@@ -2,6 +2,6 @@ Click==7.0
 Flask==1.0.2
 gunicorn==19.9.0
 itsdangerous==1.1.0
-Jinja2==2.10.1
+Jinja2==2.11.3
 MarkupSafe==1.1.1
 Werkzeug==0.15.2
\ No newline at end of file