diff --git a/nodemcuv2/basicproject01/linebot/requirements.txt b/nodemcuv2/basicproject01/linebot/requirements.txt
index 33876a1..e07d44a 100644
--- a/nodemcuv2/basicproject01/linebot/requirements.txt
+++ b/nodemcuv2/basicproject01/linebot/requirements.txt
@@ -13,4 +13,4 @@ paho-mqtt==1.2.3
 requests==2.20.0
 six==1.11.0
 urllib3==1.24
-Werkzeug==0.14.1
+Werkzeug==0.15.3