diff --git a/requirements.txt b/requirements.txt
index 1b9a4af..780caf6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -91,7 +91,7 @@ toml==0.10.2
 tornado==6.1
 traitlets==4.3.3
 transaction==3.0.0
-urllib3==1.25.11
+urllib3==1.26.5
 URLObject==2.4.3
 visitor==0.1.3
 wcwidth==0.2.5