diff --git a/requirements.txt b/requirements.txt
index f2ea463..db2865f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -121,7 +121,7 @@ tornado==6.0.4
 traitlets==4.3.3
 unify==0.5
 untokenize==0.1.1
-urllib3==1.25.10
+urllib3==1.26.5
 wcwidth==0.2.5
 webencodings==0.5.1
 widgetsnbextension==3.5.1