diff --git a/requirements.txt b/requirements.txt
index fa41b47..629b030 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -57,7 +57,7 @@ terminado==0.9.1
 testpath==0.4.4
 tornado==6.0.4
 traitlets==4.3.3
-urllib3==1.25.8
+urllib3==1.26.5
 wcwidth==0.2.5
 webencodings==0.5.1
 widgetsnbextension==3.5.1