diff --git a/requirements.txt b/requirements.txt
index 6209c1e..afa2dd2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -99,7 +99,7 @@ tqdm==4.19.9
 traitlets==4.3.2
 ujson==5.4.0
 uritemplate==3.0.0
-urllib3==1.24.2
+urllib3==1.26.5
 wcwidth==0.1.7
 Werkzeug==0.14.1
 widgetsnbextension==3.1.4