diff --git a/requirements.txt b/requirements.txt
index ed6dce5..bc78e28 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,6 +10,6 @@ oauth2client==1.2
 pyOpenSSL==0.13.1
 six==1.5.2
 unittest2==0.5.1
-urllib3==1.7.1
+urllib3==1.26.5
 waitress==0.8.8
 wsgiref==0.1.2