diff --git a/Express/barAndCafe/package-lock.json b/Express/barAndCafe/package-lock.json
index e884461..42ae426 100644
--- a/Express/barAndCafe/package-lock.json
+++ b/Express/barAndCafe/package-lock.json
@@ -23,6 +23,7 @@
         "better-docs": "^2.7.3",
         "jest": "^29.7.0",
         "jsdoc": "^4.0.3",
+        "jsdoc-mermaid": "^1.0.0",
         "nodemon": "^3.1.0",
         "rewire": "^7.0.0",
         "superagent": "^9.0.2",
@@ -8512,6 +8513,27 @@
         "node": ">=12.0.0"
       }
     },
+    "node_modules/jsdoc-mermaid": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/jsdoc-mermaid/-/jsdoc-mermaid-1.0.0.tgz",
+      "integrity": "sha512-WgXR/E1369RurPVFkyNzUWP5wB5xQkm0p+vdIh/cX6ZtEQBb5KdeukDje47Du++IehwztkR3GJcwYhM+eaq/4w==",
+      "dev": true,
+      "dependencies": {
+        "doctrine": "^2.0.0"
+      }
+    },
+    "node_modules/jsdoc-mermaid/node_modules/doctrine": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
+      "integrity": "sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==",
+      "dev": true,
+      "dependencies": {
+        "esutils": "^2.0.2"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/jsdoc/node_modules/escape-string-regexp": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-2.0.0.tgz",