diff --git a/requirements.txt b/requirements.txt
index d04c4c8..518b8d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -111,7 +111,7 @@ toml==0.10.0
 tornado==6.0.4
 traitlets==4.3.3
 ujson==1.35
-urllib3==1.25.9
+urllib3==1.26.5
 validators==0.15.0
 watchdog==0.10.2
 wcwidth==0.1.9