diff --git a/SECURITY.md b/SECURITY.md
index 7ab9a66..3b4f25a 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -23,7 +23,7 @@ This application requires environment variables for configuration. **Never commi
 - `PROCRASTINATE_PASSWORD`: Different strong password for task queue database
 
 #### Domain Configuration
-- `DOMAIN`: Your production domain (e.g., `mcpmc.yourdomain.com`)
+- `DOMAIN`: Your production domain (e.g., `mcpmc.l.supported.systems`)
 - Update CORS origins in `src/mcpmc/main.py` to match your domain
 
 #### Container Security
@@ -42,7 +42,7 @@ The application automatically configures CORS origins based on your `DOMAIN` env
 
 Set your `DOMAIN` environment variable to configure CORS automatically:
 ```bash
-DOMAIN=mcpmc.yourdomain.com
+DOMAIN=mcpmc.l.supported.systems
 ```
 
 #### SSL/TLS