diff --git a/nagios/values.yaml b/nagios/values.yaml
index 6865dbd04..1ef4ebd00 100644
--- a/nagios/values.yaml
+++ b/nagios/values.yaml
@@ -191,6 +191,11 @@ network:
         nginx.ingress.kubernetes.io/session-cookie-hash: sha1
         nginx.ingress.kubernetes.io/session-cookie-expires: "600"
         nginx.ingress.kubernetes.io/session-cookie-max-age: "600"
+        nginx.ingress.kubernetes.io/configuration-snippet: |
+          more_set_headers "X-Content-Type-Options: 'nosniff'";
+          more_set_headers "X-Frame-Options: SAMEORIGIN";
+          more_set_headers "Content-Security-Policy: script-src 'self'";
+          more_set_headers "X-XSS-Protection: 1; mode=block";
     node_port:
       enabled: false
       port: 30925