diff --git a/cmd/cloud-run/slack-message-sender/requirements.txt b/cmd/cloud-run/slack-message-sender/requirements.txt
index aebfeaccffaa..39c7532ca2b6 100644
--- a/cmd/cloud-run/slack-message-sender/requirements.txt
+++ b/cmd/cloud-run/slack-message-sender/requirements.txt
@@ -1,7 +1,8 @@
 slack_bolt==1.18.0
 slack_sdk==3.21.3
-flask==2.3.2
+flask>=2.3.2
 cloudevents==1.9.0
 gunicorn==22.0.0
 pygithub==2.1.1
 pyyaml==6.0.1
+werkzeug>=3.0.6
\ No newline at end of file