diff --git a/requirements.txt b/requirements.txt
index a20b464..8aadb9b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -84,7 +84,7 @@ traitlets==4.3.2
 typing==3.6.6
 ujson==1.35
 Unidecode==1.0.22
-urllib3==1.23
+urllib3==1.24.2
 vega==1.4.0
 wcwidth==0.1.7
 webencodings==0.5.1