diff --git a/requirements.txt b/requirements.txt
index 0fd8b89..7f938e7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -84,7 +84,7 @@ testpath==0.4.4
 tornado==6.0.4
 traitlets==4.3.3
 txt2tags==3.7
-urllib3==1.25.9
+urllib3==1.26.5
 wcwidth==0.2.5
 webencodings==0.5.1
 Werkzeug==1.0.1