diff --git a/requirements.txt b/requirements.txt
index c12707d..83d06a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,7 +75,7 @@ tqdm==4.31.1
 traitlets==4.3.2
 typing==3.6.6
 ujson==1.35
-urllib3==1.24.1
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.4.2