diff --git a/code/heroku_echo_bot/requirements.txt b/code/heroku_echo_bot/requirements.txt
index f7226c2..f1c6628 100644
--- a/code/heroku_echo_bot/requirements.txt
+++ b/code/heroku_echo_bot/requirements.txt
@@ -13,5 +13,5 @@ pytz==2018.9
 requests==2.21.0
 six==1.12.0
 twilio==6.25.2
-urllib3==1.24.1
+urllib3==1.26.5
 Werkzeug==0.15.1