diff --git a/portainer/rootfs/etc/nginx/templates/ingress.gtpl b/portainer/rootfs/etc/nginx/templates/ingress.gtpl
index 214d68d1b..ff83b9dd4 100644
--- a/portainer/rootfs/etc/nginx/templates/ingress.gtpl
+++ b/portainer/rootfs/etc/nginx/templates/ingress.gtpl
@@ -6,7 +6,7 @@ server {
   
   location / {
     proxy_pass {{ .protocol }}://backend/;
-    resolver 127.0.0.11 valid=60s;
+    resolver 127.0.0.11 valid=180s;
     proxy_set_header Connection "";
     proxy_connect_timeout 30m;
     proxy_send_timeout 30m;
@@ -17,7 +17,7 @@ server {
     proxy_pass {{ .protocol }}://backend/api/websocket/;
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection "upgrade";
-    resolver 127.0.0.11 valid=60s;
+    resolver 127.0.0.11 valid=180s;
     proxy_connect_timeout 30m;
     proxy_send_timeout 30m;
     proxy_read_timeout 30m;