diff --git a/requirements.txt b/requirements.txt
index cf2e014..9ce81b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -59,7 +59,7 @@ tox-pyenv==1.1.0
 tqdm==4.15.0
 traitlets==4.3.2
 twine==1.9.1
-urllib3==1.22
+urllib3==2.5.0
 virtualenv==15.1.0
 wcwidth==0.1.7
 Werkzeug==0.12.2