diff --git a/requirements.txt b/requirements.txt
index 26cb093..d944130 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,6 +38,6 @@ six==1.12.0
 sortedcontainers==2.1.0
 toml==0.10.0
 typed-ast==1.3.1
-urllib3==1.24.1
+urllib3==1.26.5
 Werkzeug==0.14.1
 wrapt==1.11.1