diff --git a/docs/requirements.txt b/docs/requirements.txt
index 61dc91e..3048ac4 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -87,7 +87,7 @@ testpath==0.4.2
 tornado==6.0.2
 traitlets==4.3.2
 traittypes==0.2.1
-urllib3==1.24.2
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.4.2