diff --git a/requirements.txt b/requirements.txt
index 28db434..146b9df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -108,7 +108,7 @@ traitlets==4.3.3
 typed-ast==1.4.1
 typing-extensions==3.7.4.2
 uncertainties==3.1.4
-urllib3==1.25.9
+urllib3==1.26.5
 wcwidth==0.2.4
 webencodings==0.5.1
 widgetsnbextension==3.5.1