diff --git a/nodemcuv2/basicproject01/linebot/requirements.txt b/nodemcuv2/basicproject01/linebot/requirements.txt
index 33876a1..4c0e4fd 100644
--- a/nodemcuv2/basicproject01/linebot/requirements.txt
+++ b/nodemcuv2/basicproject01/linebot/requirements.txt
@@ -12,5 +12,5 @@ microgear==1.2.7
 paho-mqtt==1.2.3
 requests==2.20.0
 six==1.11.0
-urllib3==1.24
+urllib3==1.26.5
 Werkzeug==0.14.1