diff --git a/requirements.txt b/requirements.txt
index 3aa1aaa..088f222 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ pytz==2018.5
 redis==2.10.6
 requests>=2.19.1
 sqlparse==0.2.4
-urllib3==1.23
+urllib3==1.26.5
 django-heroku==0.3.1
 gunicorn==19.9.0
 whitenoise==4.1.2