diff --git a/requirements.txt b/requirements.txt
index ac2a13b..6693483 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -163,7 +163,7 @@ tornado==4.5.2
 traitlets==4.3.2
 typing==3.6.2
 unicodecsv==0.14.1
-urllib3==1.24.2
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.15.3