diff --git a/requirements.txt b/requirements.txt
index b0f73b5..9c468f3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -85,7 +85,7 @@ tornado==6.0.3
 tqdm==4.37.0
 traitlets==4.3.3
 typed-ast==1.4.0
-urllib3==1.25.6
+urllib3==1.25.8
 virtualenv==16.7.8
 virtualenv-clone==0.5.3
 virtualenvwrapper==4.8.4