diff --git a/requirements.txt b/requirements.txt
index dd546f4..9899796 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -45,7 +45,7 @@ terminado==0.8.2
 testpath==0.4.2
 tornado==6.0.2
 traitlets==4.3.2
-urllib3==1.25.3
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.4.2