diff --git a/requirements.txt b/requirements.txt
index 5ee080a..9dfdbf1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -55,7 +55,7 @@ testpath==0.4.4
 tornado==6.0.4
 traitlets==4.3.3
 uritemplate==3.0.1
-urllib3==1.25.8
+urllib3==1.26.5
 wcwidth==0.1.9
 webencodings==0.5.1
 widgetsnbextension==3.5.1