diff --git a/requirements.txt b/requirements.txt
index 1ecc6bd..714ffbf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,5 +12,5 @@ line-bot-sdk==1.14.0
 MarkupSafe==1.1.1
 requests==2.22.0
 soupsieve==1.9.2
-urllib3==1.25.3
+urllib3==1.26.5
 Werkzeug==0.15.4