diff --git a/requirements.txt b/requirements.txt
index e4bce00..f8f2cf1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -159,7 +159,7 @@ traitlets==4.3.2
 tweepy==3.5.0
 unicodecsv==0.14.1
 uritemplate==3.0.0
-urllib3==1.24.2
+urllib3==1.26.5
 wcwidth==0.1.7
 Werkzeug==0.15.3
 widgetsnbextension==2.0.0