diff --git a/requirements.txt b/requirements.txt
index 69c5814..e30fcb7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -109,7 +109,7 @@ tifffile==2020.12.8
 tornado==6.1
 traitlets==5.0.5
 typing-extensions==3.7.4.3
-urllib3==1.26.3
+urllib3==1.26.5
 wcwidth==0.2.5
 webencodings==0.5.1
 Werkzeug==1.0.1