diff --git a/requirements.txt b/requirements.txt
index 1f0f179..4d1599a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,6 +35,6 @@ requests==2.22.0
 six==1.12.0
 tornado==6.0.3
 traitlets==4.3.2
-urllib3==1.25.3
+urllib3==1.26.5
 wcwidth==0.1.7
 wrapt==1.11.2