diff --git a/code/utils/deploy-pokedex.js b/code/utils/deploy-pokedex.js
index 442e4dd..97c4934 100644
--- a/code/utils/deploy-pokedex.js
+++ b/code/utils/deploy-pokedex.js
@@ -120,26 +120,39 @@ function expandTilde(filepath) {
 }
 
 /**
- * Create modified docker-compose.yml with custom ports
- * @param {number} port - HTTP port to map to container
- * @param {number|null} sslPort - HTTPS port to map to container (optional)
+ * Create modified docker-compose.production.yml with custom ports
+ * @param {number} port - HTTP port to map to frontend container
+ * @param {number|null} sslPort - HTTPS port to map to frontend container (optional)
+ * @param {number} backendPort - Port to map to backend container
  * @returns {string} Modified docker-compose content
  */
-function createModifiedDockerCompose(port, sslPort) {
-  const originalPath = path.join(SOURCE_DIR, 'docker-compose.yml');
+function createModifiedDockerCompose(port, sslPort, backendPort) {
+  const originalPath = path.join(SOURCE_DIR, 'docker-compose.production.yml');
   let content = fs.readFileSync(originalPath, 'utf8');
 
-  // Replace HTTP port mapping (handle both single and double quotes)
-  content = content.replace(/- ['"](\d+):80['"]/, `- '${port}:80'`);
+  // Replace frontend HTTP port mapping
+  content = content.replace(
+    /(frontend:[\s\S]*?ports:[\s\S]*?- ['"])(\d+)(:80['"])/,
+    `$1${port}$3`
+  );
 
-  // Replace HTTPS port mapping if SSL port provided
+  // Replace frontend HTTPS port mapping if SSL port provided
   if (sslPort !== null) {
-    content = content.replace(/- ['"](\d+):443['"]/, `- '${sslPort}:443'`);
+    content = content.replace(
+      /(frontend:[\s\S]*?ports:[\s\S]*?- ['"])(\d+)(:443['"])/,
+      `$1${sslPort}$3`
+    );
   } else {
-    // Remove HTTPS port mapping if no SSL port specified
-    content = content.replace(/\s*- ['"](\d+):443['"]/g, '');
+    // Remove HTTPS port mapping line if no SSL port specified
+    content = content.replace(/\s*- ['"](\d+):443['"]\n?/g, '');
   }
 
+  // Replace backend port mapping
+  content = content.replace(
+    /(backend:[\s\S]*?ports:[\s\S]*?- ['"])(\d+)(:3000['"])/,
+    `$1${backendPort}$3`
+  );
+
   return content;
 }