diff --git a/node-backend/package-lock.json b/node-backend/package-lock.json
index 42683af..17197a8 100644
--- a/node-backend/package-lock.json
+++ b/node-backend/package-lock.json
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+        "@stablelib/base64": "^1.0.0",
+        "fast-sha256": "^1.3.0"
+      }
     },
     "node_modules/statuses": {
       "version": "2.0.2",
@@ -2162,30 +2035,6 @@
         "node": ">= 0.8"
       }
     },
-    "node_modules/strnum": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/strnum/-/strnum-1.1.2.tgz",
-      "integrity": "sha512-vrN+B7DBIoTTZjnPNewwhx6cBA/H+IS7rfW68n7XxC1y7uoiGQBxaKzqucGUgavX15dJgiGztLJ8vxuEzwqBdA==",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/NaturalIntelligence"
-        }
-      ],
-      "license": "MIT"
-    },
-    "node_modules/supports-color": {
-      "version": "7.2.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
-      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
-      "license": "MIT",
-      "dependencies": {
-        "has-flag": "^4.0.0"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/toidentifier": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
@@ -2278,19 +2127,6 @@
         "node": ">= 0.4.0"
       }
     },
-    "node_modules/uuid": {
-      "version": "10.0.0",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-10.0.0.tgz",
-      "integrity": "sha512-8XkAphELsDnEGrDxUOHB3RGvXz6TeuYSGEZBOjtTtPm2lwhGBjLgOzLHB63IUWfBpNucQjND6d3AOudO+H3RWQ==",
-      "funding": [
-        "https://github.com/sponsors/broofa",
-        "https://github.com/sponsors/ctavan"
-      ],
-      "license": "MIT",
-      "bin": {
-        "uuid": "dist/bin/uuid"
-      }
-    },
     "node_modules/vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -2333,15 +2169,6 @@
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
-    },
-    "node_modules/zod-to-json-schema": {
-      "version": "3.25.2",
-      "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.25.2.tgz",
-      "integrity": "sha512-O/PgfnpT1xKSDeQYSCfRI5Gy3hPf91mKVDuYLUHZJMiDFptvP41MSnWofm8dnCm0256ZNfZIM7DSzuSMAFnjHA==",
-      "license": "ISC",
-      "peerDependencies": {
-        "zod": "^3.25.28 || ^4"
-      }
     }
   }
 }
diff --git a/node-backend/package.json b/node-backend/package.json
index 1cc3f4a..54ed902 100644
--- a/node-backend/package.json
+++ b/node-backend/package.json
@@ -20,9 +20,9 @@
     "cors": "^2.8.5",
     "openai": "^4.70.0",
     "@anthropic-ai/sdk": "^0.30.0",
-    "@langchain/core": "^0.3.0",
-    "@langchain/openai": "^0.3.0",
-    "@langchain/anthropic": "^0.3.0",
+    "@langchain/core": "^1.1.47",
+    "@langchain/openai": "^1.4.6",
+    "@langchain/anthropic": "^1.4.0",
     "csv-parse": "^5.5.6",
     "@browserstack/ai-sdk": "file:../sdk-vendor/browserstack-ai-sdk-1.0.0-beta.3.tgz"
   },