diff --git a/requirements.txt b/requirements.txt
index 384cd6e..2fd62e5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -86,7 +86,7 @@ testpath==0.4.2
 tornado==5.1.1
 traitlets==4.3.2
 typed-ast==1.4.1
-urllib3==1.25.3
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==1.0.0