diff --git a/03_room_monitor/requirements.txt b/03_room_monitor/requirements.txt
index c27476b..75c24cf 100644
--- a/03_room_monitor/requirements.txt
+++ b/03_room_monitor/requirements.txt
@@ -5,7 +5,7 @@ awscli==1.11.154
 base58==0.2.4
 boto3==1.4.5
 botocore==1.7.12
-certifi==2017.7.27.1
+certifi==2022.12.7
 cffi==1.11.0
 chardet==3.0.4
 click==6.7