diff --git a/samples/nodejs/langchain-multiturn/package-lock.json b/samples/nodejs/langchain-multiturn/package-lock.json
index 37f8cd8c..b4152c17 100644
--- a/samples/nodejs/langchain-multiturn/package-lock.json
+++ b/samples/nodejs/langchain-multiturn/package-lock.json
@@ -9,8 +9,8 @@
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    "license": "ISC",
    "dependencies": {
-    "@langchain/langgraph": "^0.3.11",
-    "@langchain/openai": "^0.5.10",
+    "@langchain/langgraph": "^1.2.9",
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@@ -101,44 +101,59 @@
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+   "version": "1.1.40",
+   "resolved": "https://registry.npmjs.org/@langchain/core/-/core-1.1.40.tgz",
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    "license": "MIT",
    "peer": true,
    "dependencies": {
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     "js-tiktoken": "^1.0.12",
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+    "langsmith": ">=0.5.0 <1.0.0",
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-    "uuid": "^10.0.0",
-    "zod": "^3.25.32",
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+    "uuid": "^11.1.0",
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+    "node": ">=20"
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+  "node_modules/@langchain/core/node_modules/uuid": {
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+   "resolved": "https://registry.npmjs.org/uuid/-/uuid-11.1.0.tgz",
+   "integrity": "sha512-0/A9rDy9P7cJ+8w1c9WD9V//9Wj15Ce2MPz8Ri6032usz+NfePxx5AcN3bN+r6ZL6jEo066/yNYB3tn4pQEx+A==",
+   "funding": [
+    "https://github.com/sponsors/broofa",
+    "https://github.com/sponsors/ctavan"
+   ],
+   "license": "MIT",
+   "peer": true,
+   "bin": {
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-   "resolved": "https://registry.npmjs.org/@langchain/langgraph/-/langgraph-0.3.12.tgz",
-   "integrity": "sha512-4jKvfmxxgQyKnCvXdFbcKt6MdfaJoQ2WWqBR16o2E6D2RxqHvnLMMClZh4FSd6WYw39z5LGWvzRapFbRMqxu1A==",
+   "version": "1.2.9",
+   "resolved": "https://registry.npmjs.org/@langchain/langgraph/-/langgraph-1.2.9.tgz",
+   "integrity": "sha512-3c7BtGycHC2v9p6w/Hv8L7kEl1YnZYOQTDJtmAp3knk6JOedO7d2bYP3y0SRyhv5orUEGf/KGvx8ZsB/ideP7g==",
+   "license": "MIT",
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-    "@langchain/langgraph-sdk": "~0.0.102",
-    "uuid": "^10.0.0",
-    "zod": "^3.25.32"
+    "@langchain/langgraph-checkpoint": "^1.0.1",
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-    "@langchain/core": ">=0.3.58 < 0.4.0",
+    "@langchain/core": "^1.1.40",
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@@ -148,9 +163,10 @@
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+   "version": "1.0.1",
+   "resolved": "https://registry.npmjs.org/@langchain/langgraph-checkpoint/-/langgraph-checkpoint-1.0.1.tgz",
+   "integrity": "sha512-HM0cJLRpIsSlWBQ/xuDC67l52SqZ62Bh2Y61DX+Xorqwoh5e1KxYvfCD7GnSTbWWhjBOutvnR0vPhu4orFkZfw==",
+   "license": "MIT",
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@@ -158,23 +174,26 @@
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-    "@langchain/core": ">=0.2.31 <0.4.0"
+    "@langchain/core": "^1.0.1"
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-   "resolved": "https://registry.npmjs.org/@langchain/langgraph-sdk/-/langgraph-sdk-0.0.112.tgz",
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+   "version": "1.8.9",
+   "resolved": "https://registry.npmjs.org/@langchain/langgraph-sdk/-/langgraph-sdk-1.8.9.tgz",
+   "integrity": "sha512-vpz90auS4iFTNy2X/CFexOEoeFSvaK+MyI7iSmzYs9gGcfzwRjWUJ4MWsuc5ZNRecLStwho0PExVXRgGOXtcRw==",
+   "license": "MIT",
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-    "p-queue": "^6.6.2",
-    "p-retry": "4",
-    "uuid": "^9.0.0"
+    "p-queue": "^9.0.1",
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+    "uuid": "^13.0.0"
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-    "@langchain/core": ">=0.2.31 <0.4.0",
+    "@langchain/core": "^1.1.16",
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-    "react-dom": "^18 || ^19"
+    "react-dom": "^18 || ^19",
+    "svelte": "^4.0.0 || ^5.0.0",
+    "vue": "^3.0.0"
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    "peerDependenciesMeta": {
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@@ -185,35 +204,86 @@
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     "react-dom": {
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+    },
+    "svelte": {
+     "optional": true
+    },
+    "vue": {
+     "optional": true
     }
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   },
+  "node_modules/@langchain/langgraph-sdk/node_modules/eventemitter3": {
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+   "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-5.0.4.tgz",
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+   "license": "MIT"
+  },
+  "node_modules/@langchain/langgraph-sdk/node_modules/p-queue": {
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+   "resolved": "https://registry.npmjs.org/p-queue/-/p-queue-9.1.2.tgz",
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+   "license": "MIT",
+   "dependencies": {
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+    "p-timeout": "^7.0.0"
+   },
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+   },
+   "funding": {
+    "url": "https://github.com/sponsors/sindresorhus"
+   }
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+   "license": "MIT",
+   "engines": {
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+   },
+   "funding": {
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    "funding": [
     "https://github.com/sponsors/broofa",
     "https://github.com/sponsors/ctavan"
    ],
+   "license": "MIT",
    "bin": {
-    "uuid": "dist/bin/uuid"
+    "uuid": "dist-node/bin/uuid"
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   "node_modules/@langchain/openai": {
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-   "resolved": "https://registry.npmjs.org/@langchain/openai/-/openai-0.5.18.tgz",
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+   "version": "1.4.4",
+   "resolved": "https://registry.npmjs.org/@langchain/openai/-/openai-1.4.4.tgz",
+   "integrity": "sha512-mRr/X5rvlwPj6cSXPxbL+CtOqYANO1/+CQ3Z+5t48kWnrlgPYOazmA+UAWvqQOuwJ6LaYn3SFrt43rR4lte/Ow==",
+   "license": "MIT",
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-    "openai": "^5.3.0",
-    "zod": "^3.25.32"
+    "openai": "^6.32.0",
+    "zod": "^3.25.76 || ^4"
    },
    "engines": {
-    "node": ">=18"
+    "node": ">=20"
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    "peerDependencies": {
-    "@langchain/core": ">=0.3.58 <0.4.0"
+    "@langchain/core": "^1.1.39"
+   }
+  },
+  "node_modules/@langchain/openai/node_modules/zod": {
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+   "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",
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+   "license": "MIT",
+   "funding": {
+    "url": "https://github.com/sponsors/colinhacks"
    }
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   "node_modules/@microsoft/agents-activity": {
@@ -284,6 +354,12 @@
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+   "resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.1.0.tgz",
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-    "semver": "^7.6.3",
-    "uuid": "^10.0.0"
+    "p-queue": "6.6.2",
+    "uuid": "10.0.0"
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    "peerDependencies": {
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     "@opentelemetry/exporter-trace-otlp-proto": "*",
     "@opentelemetry/sdk-trace-base": "*",
-    "openai": "*"
+    "openai": "*",
+    "ws": ">=7"
    },
    "peerDependenciesMeta": {
     "@opentelemetry/api": {
@@ -2207,6 +2217,9 @@
     },
     "openai": {
      "optional": true
+    },
+    "ws": {
+     "optional": true
     }
    }
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@@ -2630,15 +2643,16 @@
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-   "resolved": "https://registry.npmjs.org/openai/-/openai-5.20.0.tgz",
-   "integrity": "sha512-Bmc2zLM/YWgFrDpXr9hwXqGGDdMmMpE9+qoZPsaHpn0Y/Qk1Vu26hNqXo7+nHdli+sLsXINvS1f8kR3NKhGKmA==",
+   "version": "6.34.0",
+   "resolved": "https://registry.npmjs.org/openai/-/openai-6.34.0.tgz",
+   "integrity": "sha512-yEr2jdGf4tVFYG6ohmr3pF6VJuveP0EA/sS8TBx+4Eq5NT10alu5zg2dmxMXMgqpihRDQlFGpRt2XwsGj+Fyxw==",
+   "license": "Apache-2.0",
    "bin": {
     "openai": "bin/cli"
    },
    "peerDependencies": {
     "ws": "^8.18.0",
-    "zod": "^3.23.8"
+    "zod": "^3.25 || ^4.0"
    },
    "peerDependenciesMeta": {
     "ws": {
@@ -2670,6 +2684,8 @@
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    "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
    "integrity": "sha512-LICb2p9CB7FS+0eR1oqWnHhp0FljGLZCWBE9aix0Uye9W8LTQPwMTYVGWQWIw9RdQiDg4+epXQODwIYJtSJaow==",
+   "license": "MIT",
+   "peer": true,
    "engines": {
     "node": ">=4"
    }
@@ -2678,6 +2694,8 @@
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+   "license": "MIT",
+   "peer": true,
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@@ -2690,21 +2708,26 @@
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-   "resolved": "https://registry.npmjs.org/p-retry/-/p-retry-4.6.2.tgz",
-   "integrity": "sha512-312Id396EbJdvRONlngUx0NydfrIQ5lsYu0znKVUzVvArzEIt08V1qhtyESbGVd1FGX7UKtiFp5uwKZdM8wIuQ==",
+   "version": "7.1.1",
+   "resolved": "https://registry.npmjs.org/p-retry/-/p-retry-7.1.1.tgz",
+   "integrity": "sha512-J5ApzjyRkkf601HpEeykoiCvzHQjWxPAHhyjFcEUP2SWq0+35NKh8TLhpLw+Dkq5TZBFvUM6UigdE9hIVYTl5w==",
+   "license": "MIT",
    "dependencies": {
-    "@types/retry": "0.12.0",
-    "retry": "^0.13.1"
+    "is-network-error": "^1.1.0"
    },
    "engines": {
-    "node": ">=8"
+    "node": ">=20"
+   },
+   "funding": {
+    "url": "https://github.com/sponsors/sindresorhus"
    }
   },
   "node_modules/p-timeout": {
    "version": "3.2.0",
    "resolved": "https://registry.npmjs.org/p-timeout/-/p-timeout-3.2.0.tgz",
    "integrity": "sha512-rhIwUycgwwKcP9yTOOFK/AKsAopjjCakVqLHePO3CC6Mir1Z99xT+R63jZxAT5lFZLa2inS5h+ZS2GvR99/FBg==",
+   "license": "MIT",
+   "peer": true,
    "dependencies": {
     "p-finally": "^1.0.0"
    },
@@ -2977,14 +3000,6 @@
     "url": "https://github.com/sponsors/ljharb"
    }
   },
-  "node_modules/retry": {
-   "version": "0.13.1",
-   "resolved": "https://registry.npmjs.org/retry/-/retry-0.13.1.tgz",
-   "integrity": "sha512-XQBQ3I8W1Cge0Seh+6gjj03LbmRFWuoszgK9ooCpwYIrhhoO80pfq4cUkU5DkknwfOfFteRwlZ56PYOGYyFWdg==",
-   "engines": {
-    "node": ">= 4"
-   }
-  },
   "node_modules/router": {
    "version": "2.2.0",
    "resolved": "https://registry.npmjs.org/router/-/router-2.2.0.tgz",
@@ -3286,12 +3301,6 @@
     "node": ">=10"
    }
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-  "node_modules/simple-wcswidth": {
-   "version": "1.1.2",
-   "resolved": "https://registry.npmjs.org/simple-wcswidth/-/simple-wcswidth-1.1.2.tgz",
-   "integrity": "sha512-j7piyCjAeTDSjzTSQ7DokZtMNwNlEAyxqSZeCS+CXH7fJ4jx3FuJ/mTW3mE+6JLs4VJBbcll0Kjn+KXI5t21Iw==",
-   "peer": true
-  },
   "node_modules/spdx-correct": {
    "version": "3.2.0",
    "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.2.0.tgz",
@@ -3428,18 +3437,6 @@
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    }
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-  "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==",
-   "peer": true,
-   "dependencies": {
-    "has-flag": "^4.0.0"
-   },
-   "engines": {
-    "node": ">=8"
-   }
-  },
   "node_modules/supports-preserve-symlinks-flag": {
    "version": "1.0.0",
    "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
@@ -3769,15 +3766,6 @@
    "funding": {
     "url": "https://github.com/sponsors/colinhacks"
    }
-  },
-  "node_modules/zod-to-json-schema": {
-   "version": "3.24.6",
-   "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.24.6.tgz",
-   "integrity": "sha512-h/z3PKvcTcTetyjl1fkj79MHNEjm+HpD6NXheWjzOekY7kV+lwDYnHw+ivHkijnCSMz1yJaWBD9vu/Fcmk+vEg==",
-   "peer": true,
-   "peerDependencies": {
-    "zod": "^3.24.1"
-   }
   }
  }
 }
diff --git a/samples/nodejs/langchain-multiturn/package.json b/samples/nodejs/langchain-multiturn/package.json
index 8f8cf149..a6a0c321 100644
--- a/samples/nodejs/langchain-multiturn/package.json
+++ b/samples/nodejs/langchain-multiturn/package.json
@@ -15,8 +15,8 @@
   "type": "module",
   "description": "",
   "dependencies": {
-    "@langchain/langgraph": "^0.3.11",
-    "@langchain/openai": "^0.5.10",
+    "@langchain/langgraph": "^1.2.9",
+    "@langchain/openai": "^1.4.4",
     "@microsoft/agents-hosting-express": "^1.1.0",
     "express": "^5.1.0"
   },