diff --git a/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/acme_challenge.conf b/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/acme_challenge.conf
index 979737d..b032d63 100644
--- a/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/acme_challenge.conf
+++ b/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/acme_challenge.conf
@@ -27,7 +27,7 @@ map $host $upstream_acme_challenge_host {
     eh07.easterhegg.eu 172.31.17.151:31820;
     eh09.easterhegg.eu 172.31.17.151:31820;
     eh11.easterhegg.eu 172.31.17.151:31820;
-    eh22.easterhegg.eu 172.31.17.156:31820;
+    eh22.easterhegg.eu 172.31.17.159:31820;
     easterheggxxxx.hamburg.ccc.de 172.31.17.151:31820;
     eh2003.hamburg.ccc.de 172.31.17.151:31820;
     www.eh2003.hamburg.ccc.de 172.31.17.151:31820;
diff --git a/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/nginx.conf b/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/nginx.conf
index bed06e4..db21eb2 100644
--- a/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/nginx.conf
+++ b/playbooks/files/chaosknoten/configs/public-reverse-proxy/nginx/nginx.conf
@@ -45,7 +45,7 @@ stream {
         eh07.easterhegg.eu 172.31.17.151:8443;
         eh09.easterhegg.eu 172.31.17.151:8443;
         eh11.easterhegg.eu 172.31.17.151:8443;
-        eh22.easterhegg.eu 172.31.17.156:8443;
+        eh22.easterhegg.eu 172.31.17.159:8443;
         easterheggxxxx.hamburg.ccc.de 172.31.17.151:8443;
         eh2003.hamburg.ccc.de 172.31.17.151:8443;
         www.eh2003.hamburg.ccc.de 172.31.17.151:8443;