diff --git a/examples/langchain-agent/package.json b/examples/langchain-agent/package.json
index 36a6eb9..c477d78 100644
--- a/examples/langchain-agent/package.json
+++ b/examples/langchain-agent/package.json
@@ -9,7 +9,7 @@
   "dependencies": {
     "@webflow-agent-kit/core": "workspace:*",
     "@webflow-agent-kit/langchain": "workspace:*",
-    "@langchain/core": "^0.3.0",
+    "@langchain/core": "^1.2.3",
     "@langchain/openai": "^0.3.0",
     "dotenv": "^16.0.0",
     "zod": "^3.23.0"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 1952c9c..c64cbeb 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -30,11 +30,11 @@ importers:
   examples/langchain-agent:
     dependencies:
       '@langchain/core':
-        specifier: ^0.3.0
-        version: 0.3.80(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76))
+        specifier: ^1.2.3
+        version: 1.2.3(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76))
       '@langchain/openai':
         specifier: ^0.3.0
-        version: 0.3.17(@langchain/core@0.3.80(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76)))
+        version: 0.3.17(@langchain/core@1.2.3(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76)))
       '@webflow-agent-kit/core':
         specifier: workspace:*
         version: link:../../packages/core
@@ -918,6 +918,10 @@ packages:
     resolution: {integrity: sha512-vcJDV2vk1AlCwSh3aBm/urQ1ZrlXFFBocv11bz/NBUfLWD5/UDNMzwPdaAd2dKvNmTWa9FM2lirLU3+JCf4cRA==}
     engines: {node: '>=18'}
 
+  '@langchain/core@1.2.3':
+    resolution: {integrity: sha512-F+L5SsciykwDl7eDxacnhDTcWe1IF6jetzfkvI5PPfq6ogWHO7xcjU90SGh/3lqbbS0tgun+qF01KIqxawrCsA==}
+    engines: {node: '>=20'}
+
   '@langchain/openai@0.3.17':
     resolution: {integrity: sha512-uw4po32OKptVjq+CYHrumgbfh4NuD7LqyE+ZgqY9I/LrLc6bHLMc+sisHmI17vgek0K/yqtarI0alPJbzrwyag==}
     engines: {node: '>=18'}
@@ -2244,6 +2248,26 @@ packages:
       openai:
         optional: true
 
+  langsmith@0.8.3:
+    resolution: {integrity: sha512-3y1PRTmY24wiN8NiMb0CcNI2LwgovsKAz+ymVmBSmUx4nXL+GlmPY6Ju7FGeaPV1DMfQs9SjceNZHIfY2XYMKQ==}
+    peerDependencies:
+      '@opentelemetry/api': '*'
+      '@opentelemetry/exporter-trace-otlp-proto': '*'
+      '@opentelemetry/sdk-trace-base': '*'
+      openai: '*'
+      ws: '>=7'
+    peerDependenciesMeta:
+      '@opentelemetry/api':
+        optional: true
+      '@opentelemetry/exporter-trace-otlp-proto':
+        optional: true
+      '@opentelemetry/sdk-trace-base':
+        optional: true
+      openai:
+        optional: true
+      ws:
+        optional: true
+
   levn@0.4.1:
     resolution: {integrity: sha512-+bT2uH4E5LGE7h/n3evcS/sQlJXCpIp6ym8OWJ5eV6+67Dsql/LaaT7qJBAt2rzfoa/5QBGBhxDix1dMt2kQKQ==}
     engines: {node: '>= 0.8.0'}
@@ -3862,9 +3886,25 @@ snapshots:
       - '@opentelemetry/sdk-trace-base'
       - openai
 
-  '@langchain/openai@0.3.17(@langchain/core@0.3.80(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76)))':
+  '@langchain/core@1.2.3(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76))':
     dependencies:
-      '@langchain/core': 0.3.80(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76))
+      '@cfworker/json-schema': 4.1.1
+      '@standard-schema/spec': 1.1.0
+      js-tiktoken: 1.0.21
+      langsmith: 0.8.3(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76))
+      mustache: 4.2.0
+      p-queue: 6.6.2
+      zod: 3.25.76
+    transitivePeerDependencies:
+      - '@opentelemetry/api'
+      - '@opentelemetry/exporter-trace-otlp-proto'
+      - '@opentelemetry/sdk-trace-base'
+      - openai
+      - ws
+
+  '@langchain/openai@0.3.17(@langchain/core@1.2.3(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76)))':
+    dependencies:
+      '@langchain/core': 1.2.3(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76))
       js-tiktoken: 1.0.21
       openai: 4.104.0(zod@3.25.76)
       zod: 3.25.76
@@ -5253,6 +5293,13 @@ snapshots:
       '@opentelemetry/api': 1.9.0
       openai: 4.104.0(zod@3.25.76)
 
+  langsmith@0.8.3(@opentelemetry/api@1.9.0)(openai@4.104.0(zod@3.25.76)):
+    dependencies:
+      p-queue: 6.6.2
+    optionalDependencies:
+      '@opentelemetry/api': 1.9.0
+      openai: 4.104.0(zod@3.25.76)
+
   levn@0.4.1:
     dependencies:
       prelude-ls: 1.2.1