diff --git a/cmd/operator/kodata/ingress/1.18/kourier/kourier.yaml b/cmd/operator/kodata/ingress/1.18/kourier/kourier.yaml
index d3e7f3b25..19dc41ca5 100644
--- a/cmd/operator/kodata/ingress/1.18/kourier/kourier.yaml
+++ b/cmd/operator/kodata/ingress/1.18/kourier/kourier.yaml
@@ -497,7 +497,7 @@ spec:
             - /usr/local/bin/envoy
           env:
             - name: DRAIN_TIME_SECONDS
-              value: "15"
+              value: "3605"
           image: docker.io/envoyproxy/envoy:v1.34-latest
           name: kourier-gateway
           ports:
@@ -567,7 +567,7 @@ spec:
               cpu: "1"
               memory: 800Mi
       # to ensure a graceful drain, terminationGracePeriodSeconds must be greater than DRAIN_TIME_SECONDS environment variable
-      terminationGracePeriodSeconds: 30
+      terminationGracePeriodSeconds: 3665
       volumes:
         - name: config-volume
           configMap: