diff --git a/requirements.txt b/requirements.txt
index b054d94..63bc611 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,5 +13,5 @@ pypng==0.0.18
 PyQRCode==1.2.1
 requests==2.18.1
 rsa==3.4.2
-urllib3==1.21.1
+urllib3==1.26.5
 Werkzeug==0.12.2