diff --git a/requirements-3.6.txt b/requirements-3.6.txt
index 451e3f9..2c07be5 100644
--- a/requirements-3.6.txt
+++ b/requirements-3.6.txt
@@ -83,7 +83,7 @@ tqdm==4.19.6
 traitlets==4.3.2
 tzlocal==1.5.1
 ujson==1.35
-urllib3==1.22
+urllib3==1.26.5
 virtualenv==15.1.0
 watchdog==0.8.3
 wcwidth==0.1.7