diff --git a/requirements.txt b/requirements.txt
index 1e06a87..3248847 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,5 +13,5 @@ MarkupSafe==1.0
 pytz==2018.5
 requests==2.19.1
 six==1.11.0
-urllib3==1.23
+urllib3==1.26.5
 Werkzeug==0.14.1