diff --git a/requirements.txt b/requirements.txt
index 88b8fec..b408fd1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -54,7 +54,7 @@ tornado==6.1
 traitlets==5.0.5
 typing-extensions==3.7.4.3
 ujson==1.35
-urllib3==1.25.11
+urllib3==1.26.5
 vine==1.3.0
 watchdog==0.10.4
 wcwidth==0.2.5