diff --git a/examples/langchain/package-lock.json b/examples/langchain/package-lock.json
index 81d32248..6cc36f9c 100644
--- a/examples/langchain/package-lock.json
+++ b/examples/langchain/package-lock.json
@@ -766,6 +766,7 @@
         "@hiero-ledger/sdk": "2.81.0",
         "@langchain/openai": "1.2.7",
         "dotenv": "17.2.1",
+        "long": "5.3.2",
         "tsup": "8.5.0",
         "typescript": "5.8.3",
         "vitest": "4.0.16"
@@ -2743,26 +2744,6 @@
         "node": ">= 20.19.4"
       }
     },
-    "node_modules/@react-native/dev-middleware/node_modules/ws": {
-      "version": "7.5.10",
-      "license": "MIT",
-      "peer": true,
-      "engines": {
-        "node": ">=8.3.0"
-      },
-      "peerDependencies": {
-        "bufferutil": "^4.0.1",
-        "utf-8-validate": "^5.0.2"
-      },
-      "peerDependenciesMeta": {
-        "bufferutil": {
-          "optional": true
-        },
-        "utf-8-validate": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/@react-native/gradle-plugin": {
       "version": "0.84.0",
       "license": "MIT",
@@ -4923,26 +4904,6 @@
         "node": ">=0.10.0"
       }
     },
-    "node_modules/metro/node_modules/ws": {
-      "version": "7.5.10",
-      "license": "MIT",
-      "peer": true,
-      "engines": {
-        "node": ">=8.3.0"
-      },
-      "peerDependencies": {
-        "bufferutil": "^4.0.1",
-        "utf-8-validate": "^5.0.2"
-      },
-      "peerDependenciesMeta": {
-        "bufferutil": {
-          "optional": true
-        },
-        "utf-8-validate": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/micromatch": {
       "version": "4.0.8",
       "license": "MIT",
@@ -5504,26 +5465,6 @@
         "ws": "^7"
       }
     },
-    "node_modules/react-devtools-core/node_modules/ws": {
-      "version": "7.5.10",
-      "license": "MIT",
-      "peer": true,
-      "engines": {
-        "node": ">=8.3.0"
-      },
-      "peerDependencies": {
-        "bufferutil": "^4.0.1",
-        "utf-8-validate": "^5.0.2"
-      },
-      "peerDependenciesMeta": {
-        "bufferutil": {
-          "optional": true
-        },
-        "utf-8-validate": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/react-is": {
       "version": "18.3.1",
       "license": "MIT",
@@ -5594,26 +5535,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/react-native/node_modules/ws": {
-      "version": "7.5.10",
-      "license": "MIT",
-      "peer": true,
-      "engines": {
-        "node": ">=8.3.0"
-      },
-      "peerDependencies": {
-        "bufferutil": "^4.0.1",
-        "utf-8-validate": "^5.0.2"
-      },
-      "peerDependenciesMeta": {
-        "bufferutil": {
-          "optional": true
-        },
-        "utf-8-validate": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/react-refresh": {
       "version": "0.14.2",
       "license": "MIT",
@@ -6349,6 +6270,28 @@
         "node": "^12.13.0 || ^14.15.0 || >=16.0.0"
       }
     },
+    "node_modules/ws": {
+      "version": "7.5.11",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.11.tgz",
+      "integrity": "sha512-zS54Oen9bITtp7kp2XM3AydrCIq1D+HwJOuH+c+e4LfpL/lotP5osijd+UoMnxwAam1GN8R4KtLAyIrIcBNpiA==",
+      "license": "MIT",
+      "peer": true,
+      "engines": {
+        "node": ">=8.3.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": "^5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/y18n": {
       "version": "5.0.8",
       "license": "ISC",