diff --git a/requirements.txt b/requirements.txt
index 2edd742..ef04e09 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ Flask==1.0.2
 line-bot-sdk==1.8.0
 requests==2.19.1
 requests-oauthlib==1.0.0
-urllib3==1.23
\ No newline at end of file
+urllib3==1.26.5
\ No newline at end of file