diff --git a/herokuapp/requirements.txt b/herokuapp/requirements.txt
index 71ca302..ed3439d 100644
--- a/herokuapp/requirements.txt
+++ b/herokuapp/requirements.txt
@@ -1,5 +1,5 @@
 dj-database-url==0.5.0
-Django==2.2.8
+Django==2.2.21
 gunicorn==19.9.0
 psycopg2-binary==2.8.2
 pytz==2019.1