diff --git a/requirements.txt b/requirements.txt
index 92da62d..d0b4ed2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -86,7 +86,7 @@ testpath==0.4.2
 tornado==6.0.3
 traitlets==4.3.2
 typing==3.7.4
-urllib3==1.25.3
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.15.4