diff --git a/Heroku-app/requirements.txt b/Heroku-app/requirements.txt
index 408e3db..9a26deb 100644
--- a/Heroku-app/requirements.txt
+++ b/Heroku-app/requirements.txt
@@ -1,5 +1,5 @@
 bottle==0.12.13
-certifi==2018.4.16
+certifi==2022.12.7
 chardet==3.0.4
 gunicorn==19.7.1
 idna==2.6