diff --git a/slack_bot/requirements.txt b/slack_bot/requirements.txt
index c4bc60c..0726011 100644
--- a/slack_bot/requirements.txt
+++ b/slack_bot/requirements.txt
@@ -30,7 +30,7 @@ toml==0.9.4
 tqdm==4.19.1
 troposphere==2.1.2
 Unidecode==1.0.22
-urllib3==1.23
+urllib3==1.26.5
 Werkzeug==0.12
 wsgi-request-logger==0.4.6
 zappa==0.45.1