diff --git a/requirements.txt b/requirements.txt
index 7d711ee..cee0f37 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,6 +13,6 @@ Jinja2==2.10
 MarkupSafe==1.0
 pytz==2018.5
 requests==2.19.1
-urllib3==1.23
+urllib3==1.26.5
 Werkzeug==0.14.1
 WTForms==2.2.1