diff --git a/meraki_cloud_simulator/meraki-sample-captive-portal/requirements.txt b/meraki_cloud_simulator/meraki-sample-captive-portal/requirements.txt
index b9a4593..6c52ec6 100644
--- a/meraki_cloud_simulator/meraki-sample-captive-portal/requirements.txt
+++ b/meraki_cloud_simulator/meraki-sample-captive-portal/requirements.txt
@@ -1,3 +1,3 @@
-Flask==1.1.1
+Flask==2.3.2
 requests==2.22.0
 webexteamssdk==1.2