diff --git a/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf b/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf
index c7be7563..04b310a1 100644
--- a/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf
+++ b/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf
@@ -3,6 +3,7 @@
 
 user  nginx;
 worker_processes  auto;
+worker_rlimit_nofile  2050; # should be worker_connections*2 at least
 
 error_log  /var/log/nginx/error.log notice;
 pid        /var/run/nginx.pid;
diff --git a/resources/chaosknoten/sunders/docker_compose/compose.yaml.j2 b/resources/chaosknoten/sunders/docker_compose/compose.yaml.j2
index 8ee08bab..0e3d5e59 100644
--- a/resources/chaosknoten/sunders/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/sunders/docker_compose/compose.yaml.j2
@@ -3,7 +3,7 @@
 
 services:
   db:
-    image: mariadb:12.3.2
+    image: mariadb:12.3.3
     command: --max_allowed_packet=3250585600
     environment:
       MYSQL_ROOT_PASSWORD: "{{ secret__sunders_db_root_password }}"