diff --git a/gtm-architect/package.json b/gtm-architect/package.json
index f2f70b9a..bd2437d3 100644
--- a/gtm-architect/package.json
+++ b/gtm-architect/package.json
@@ -14,7 +14,8 @@
     "react-markdown": "^10.1.0",
     "remark-gfm": "^4.0.0",
     "react-dom": "^19.2.3",
-    "lucide-react": "^0.562.0"
+    "lucide-react": "^0.562.0",
+    "express": "^4.18.2"
   },
   "devDependencies": {
     "@types/node": "^22.14.0",