diff --git a/requirements.txt b/requirements.txt
index 7e97e80..8698185 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -91,7 +91,7 @@ testpath==0.3.1
 tornado==5.1
 traitlets==4.3.2
 Twisted==19.7.0
-urllib3==1.24.2
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.15.3