diff --git a/requirements.txt b/requirements.txt
index 7c57cc8..6453c50 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ sentinels==1.0.0
 six==1.13.0
 toml==0.10.0
 typed-ast==1.4.0
-urllib3==1.25.7
+urllib3==1.26.5
 waitress==1.4.3
 wcwidth==0.1.7
 Werkzeug==0.16.0