diff --git a/requirements.txt b/requirements.txt
index 2492ea7..5da9f5b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,5 +15,5 @@ pytz==2018.4
 requests==2.19.1
 rsa==3.4.2
 six==1.11.0
-urllib3==1.23
+urllib3==1.26.5
 Werkzeug==0.14.1