diff --git a/requirements.txt b/requirements.txt
index 4abdbcb..64a9d3c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -127,7 +127,7 @@ tornado==4.2.1
 traitlets==4.0.0
 ujson==1.33
 unicodecsv==0.14.1
-urllib3==1.12
+urllib3==1.26.5
 Werkzeug==0.10.4
 wheel==0.26.0
 WTForms==1.0.5