diff --git a/requirements.txt b/requirements.txt
index 7c8437b..f924906 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -103,7 +103,7 @@ testpath==0.3.1
 tornado==5.1
 traitlets==4.3.2
 typed-ast==1.4.0
-urllib3==1.25.3
+urllib3==1.26.5
 virtualenv==16.7.2
 waitress==1.4.2
 wcwidth==0.1.7