diff --git a/requirements.txt b/requirements.txt
index 6b46e41..90ad477 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -90,7 +90,7 @@ tornado==6.0.2
 tqdm==4.35.0
 traitlets==4.3.2
 twine==1.14.0
-urllib3==1.25.3
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.15.5