diff --git a/requirements.txt b/requirements.txt
index bd09390..c6e8a4c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ testpath==0.4.2
 tornado==5.1.1
 traitlets==4.3.2
 typed-ast==1.4.0
-urllib3==1.25.3
+urllib3==1.25.8
 virtualenv==16.7.5
 visitor==0.1.3
 wcwidth==0.1.7