diff --git a/requirements.txt b/requirements.txt
index 8bd1509..9ff7dc5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -118,7 +118,7 @@ toposort==1.5
 tox==3.14.0
 tqdm==4.35.0
 twine==1.13.0
-urllib3==1.25.3
+urllib3==1.26.5
 virtualenv==16.7.5
 wcwidth==0.1.7
 webencodings==0.5.1