diff --git a/examples/moon-sdk-authentication-chat-example-app/package-lock.json b/examples/moon-sdk-authentication-chat-example-app/package-lock.json
index e2872c3..f19c496 100644
--- a/examples/moon-sdk-authentication-chat-example-app/package-lock.json
+++ b/examples/moon-sdk-authentication-chat-example-app/package-lock.json
@@ -30,7 +30,7 @@
         "cors": "^2.8.5",
         "dotenv": "^16.4.1",
         "ethers": "^5.7.2",
-        "express": "^4.18.2",
+        "express": "^4.19.2",
         "langchain": "^0.1.2",
         "node-polyfill-webpack-plugin": "^3.0.0",
         "react": "^18.2.0",
@@ -11175,11 +11175,12 @@
       "license": "MIT"
     },
     "node_modules/body-parser": {
-      "version": "1.20.1",
-      "license": "MIT",
+      "version": "1.20.2",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.2.tgz",
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       "dependencies": {
         "bytes": "3.1.2",
-        "content-type": "~1.0.4",
+        "content-type": "~1.0.5",
         "debug": "2.6.9",
         "depd": "2.0.0",
         "destroy": "1.2.0",
@@ -11187,7 +11188,7 @@
         "iconv-lite": "0.4.24",
         "on-finished": "2.4.1",
         "qs": "6.11.0",
-        "raw-body": "2.5.1",
+        "raw-body": "2.5.2",
         "type-is": "~1.6.18",
         "unpipe": "1.0.0"
       },
@@ -11198,21 +11199,24 @@
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     "node_modules/body-parser/node_modules/bytes": {
       "version": "3.1.2",
-      "license": "MIT",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
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       "engines": {
         "node": ">= 0.8"
       }
     },
     "node_modules/body-parser/node_modules/debug": {
       "version": "2.6.9",
-      "license": "MIT",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
       "dependencies": {
         "ms": "2.0.0"
       }
     },
     "node_modules/body-parser/node_modules/iconv-lite": {
       "version": "0.4.24",
-      "license": "MIT",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+      "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
       "dependencies": {
         "safer-buffer": ">= 2.1.2 < 3"
       },
@@ -11222,7 +11226,8 @@
     },
     "node_modules/body-parser/node_modules/ms": {
       "version": "2.0.0",
-      "license": "MIT"
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A=="
     },
     "node_modules/bonjour-service": {
       "version": "1.1.1",
@@ -12240,7 +12245,8 @@
     },
     "node_modules/content-type": {
       "version": "1.0.5",
-      "license": "MIT",
+      "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz",
+      "integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
       "engines": {
         "node": ">= 0.6"
       }
@@ -12250,8 +12256,9 @@
       "license": "MIT"
     },
     "node_modules/cookie": {
-      "version": "0.5.0",
-      "license": "MIT",
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.6.0.tgz",
+      "integrity": "sha512-U71cyTamuh1CRNCfpGY6to28lxvNwPG4Guz/EVjgf3Jmzv0vlDp1atT9eS5dDjMYHucpHbWns6Lwf3BKz6svdw==",
       "engines": {
         "node": ">= 0.6"
       }
@@ -14591,15 +14598,16 @@
       "license": "MIT"
     },
     "node_modules/express": {
-      "version": "4.18.2",
-      "license": "MIT",
+      "version": "4.19.2",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.19.2.tgz",
+      "integrity": "sha512-5T6nhjsT+EOMzuck8JjBHARTHfMht0POzlA60WV2pMD3gyXw2LZnZ+ueGdNxG+0calOJcWKbpFcuzLZ91YWq9Q==",
       "dependencies": {
         "accepts": "~1.3.8",
         "array-flatten": "1.1.1",
-        "body-parser": "1.20.1",
+        "body-parser": "1.20.2",
         "content-disposition": "0.5.4",
         "content-type": "~1.0.4",
-        "cookie": "0.5.0",
+        "cookie": "0.6.0",
         "cookie-signature": "1.0.6",
         "debug": "2.6.9",
         "depd": "2.0.0",
@@ -20324,7 +20332,8 @@
     },
     "node_modules/media-typer": {
       "version": "0.3.0",
-      "license": "MIT",
+      "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
+      "integrity": "sha512-dq+qelQ9akHpcOl/gUVRTxVIOkAJ1wR3QAvb4RsVjS8oVoFjDGTc679wJYmUmknUF5HwMLOgb5O+a3KxfWapPQ==",
       "engines": {
         "node": ">= 0.6"
       }
@@ -24321,7 +24330,8 @@
     },
     "node_modules/qs": {
       "version": "6.11.0",
-      "license": "BSD-3-Clause",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.11.0.tgz",
+      "integrity": "sha512-MvjoMCJwEarSbUYk5O+nmoSzSutSsTwF85zcHPQ9OrlFoZOYIjaqBAJIqIXjptyD5vThxGq52Xu/MaJzRkIk4Q==",
       "dependencies": {
         "side-channel": "^1.0.4"
       },
@@ -24426,8 +24436,9 @@
       }
     },
     "node_modules/raw-body": {
-      "version": "2.5.1",
-      "license": "MIT",
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.2.tgz",
+      "integrity": "sha512-8zGqypfENjCIqGhgXToC8aB2r7YrBX+AQAfIPs/Mlk+BtPTztOvTS01NRW/3Eh60J+a48lt8qsCzirQ6loCVfA==",
       "dependencies": {
         "bytes": "3.1.2",
         "http-errors": "2.0.0",
@@ -24440,14 +24451,16 @@
     },
     "node_modules/raw-body/node_modules/bytes": {
       "version": "3.1.2",
-      "license": "MIT",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
       "engines": {
         "node": ">= 0.8"
       }
     },
     "node_modules/raw-body/node_modules/iconv-lite": {
       "version": "0.4.24",
-      "license": "MIT",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+      "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
       "dependencies": {
         "safer-buffer": ">= 2.1.2 < 3"
       },
@@ -27580,7 +27593,8 @@
     },
     "node_modules/type-is": {
       "version": "1.6.18",
-      "license": "MIT",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
       "dependencies": {
         "media-typer": "0.3.0",
         "mime-types": "~2.1.24"
diff --git a/examples/moon-sdk-authentication-chat-example-app/package.json b/examples/moon-sdk-authentication-chat-example-app/package.json
index c98cca3..ca59cde 100644
--- a/examples/moon-sdk-authentication-chat-example-app/package.json
+++ b/examples/moon-sdk-authentication-chat-example-app/package.json
@@ -25,7 +25,7 @@
     "cors": "^2.8.5",
     "dotenv": "^16.4.1",
     "ethers": "^5.7.2",
-    "express": "^4.18.2",
+    "express": "^4.19.2",
     "langchain": "^0.1.2",
     "node-polyfill-webpack-plugin": "^3.0.0",
     "react": "^18.2.0",