diff --git a/requirements.txt b/requirements.txt
index ee13259..2c76263 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ tornado==4.5.2
 tqdm==4.19.4
 traitlets==4.3.2
 ujson==1.35
-urllib3==1.22
+urllib3==1.26.5
 wcwidth==0.1.7
 Werkzeug==0.12.2
 widgetsnbextension==3.0.6