diff --git a/requirements.txt b/requirements.txt
index dd2a67c..70cb004 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -151,7 +151,7 @@ tornado==4.5.2
 traitlets==4.3.2
 typing==3.6.2
 unicodecsv==0.14.1
-urllib3==1.22
+urllib3==1.26.5
 virtualenv==15.2.0
 virtualenv-clone==0.3.0
 wcwidth==0.1.7