diff --git a/requirements.txt b/requirements.txt
index 5f23fc8..56bafa0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -63,7 +63,7 @@ testpath==0.3.1
 tornado==4.5.3
 tqdm==4.19.5
 traitlets==4.3.2
-urllib3==1.22
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.1.0