diff --git a/kubernetes.yaml b/kubernetes.yaml
index 1f15fb0..e5cb14a 100644
--- a/kubernetes.yaml
+++ b/kubernetes.yaml
@@ -1164,6 +1164,8 @@ Resources:
       CrossZone: true
       SecurityGroups:
         - !Ref ControllerSecurityGroup
+      ConnectionSettings:
+        IdleTimeout: 3600
       HealthCheck:
         HealthyThreshold: 2
         Interval: 30