diff --git a/requirements.txt b/requirements.txt
index 3b67a0e..6607faf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,6 +46,6 @@ retrying==1.3.3
 six==1.12.0
 tornado==5.1.1
 traitlets==4.3.2
-urllib3==1.24.1
+urllib3==1.26.5
 wcwidth==0.1.7
 Werkzeug==0.14.1