diff --git a/README.md b/README.md
index f3a400c..670797d 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ Core (netcup RS2000, 152.53.192.33)
 Wasabi S3 (hermes-vps-backups/live/)
          │
          ▼  
-app1-bu (Hetzner CPX11, 5.161.225.131)
+app1-bu (Hetzner CPX21, 5.161.225.131)
   ├── Dormant Hermes
   └── Sync from S3 every 10 min
 ```
diff --git a/itpp-recovery-manual.md b/itpp-recovery-manual.md
index a2ab5ff..36961c0 100644
--- a/itpp-recovery-manual.md
+++ b/itpp-recovery-manual.md
@@ -43,7 +43,7 @@
 | # | Server | IP | Provider | Specs | OS | What It Runs |
 |---|--------|----|----------|-------|----|-------------|
 | **1** | **Core** (Primary) | 152.53.192.33 | netcup RS 2000 | 8C/15G/512G | Debian 13 | Hermes, Caddy, Docker (Twenty, Vaultwarden, Docuseal, SearXNG), Shark Game, Ollama, VPN |
-| **2** | **app1-bu** (Standby) | 5.161.225.131 | Hetzner CPX11 | 2C/2G/40G | Ubuntu 26.04 | Hermes standby, StrongSwan, L2TP |
+| **2** | **app1-bu** (Standby) | 5.161.225.131 | Hetzner CPX21 | 3C/4G/80G | Ubuntu 26.04 | Hermes standby, StrongSwan, L2TP |
 | **3** | **ai.itpropartner.com** | 178.156.167.181 | Hetzner CPX41 | 8C/16G/240G | Ubuntu 24.04 | LiteLLM, Open WebUI, Ollama, Qdrant |
 | **4** | **hudu.itpropartner.com** | 178.156.130.130 | Hetzner CPX21 | 3C/4G/80G | Ubuntu 24.04 | Hudu Docs, SWAG, MariaDB |
 | **5** | **unifi** | 178.156.131.57 | Hetzner CPX21 | 3C/4G/80G | Ubuntu 24.04 | UniFi Controller, MongoDB, MariaDB |
diff --git a/network-and-service-endpoints.md b/network-and-service-endpoints.md
index 9da025a..cb35f86 100644
--- a/network-and-service-endpoints.md
+++ b/network-and-service-endpoints.md
@@ -26,7 +26,7 @@
 | Name | Type | IP | Purpose |
 |------|------|----|---------|
 | wphost02 | CPX21 | 5.161.62.38 | Apex WP + RunCloud |
-| app1-bu | CPX11 | 5.161.225.131 | Hermes warm standby |
+| app1-bu | CPX21 | 5.161.225.131 | Hermes warm standby |
 | tony-vps | CPX21 | 87.99.159.142 | Tony's Hermes |
 | unms | CPX21 | 5.161.225.131 | UISP/UNMS |
 | unifi | CPX21 | 178.156.131.57 | UniFi controller |