diff --git a/package-lock.json b/package-lock.json
index b675a90..0fc6c09 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@azure/ai-projects": "^2.0.0-beta.2",
         "@azure/identity": "^4.13.0",
-        "@langchain/core": "^1.1.4",
+        "@langchain/core": "^1.1.8",
         "@langchain/langgraph": "^1.0.4",
         "@langchain/langgraph-supervisor": "^1.0.0",
         "@langchain/openai": "^1.1.3",
@@ -522,17 +522,18 @@
       "license": "MIT"
     },
     "node_modules/@langchain/core": {
-      "version": "1.1.4",
-      "resolved": "https://registry.npmjs.org/@langchain/core/-/core-1.1.4.tgz",
-      "integrity": "sha512-AZVHVoLJzhHU/jsjeNto1pvfHaPxGT+V3PcVyvUw0kCiWftdu1bxfwhwSsZJ9B9iJeXJdCIUe089+NYd3FsEuw==",
+      "version": "1.1.8",
+      "resolved": "https://registry.npmjs.org/@langchain/core/-/core-1.1.8.tgz",
+      "integrity": "sha512-kIUidOgc0ZdyXo4Ahn9Zas+OayqOfk4ZoKPi7XaDipNSWSApc2+QK5BVcjvwtzxstsNOrmXJiJWEN6WPF/MvAw==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@cfworker/json-schema": "^4.0.2",
         "ansi-styles": "^5.0.0",
         "camelcase": "6",
         "decamelize": "1.2.0",
         "js-tiktoken": "^1.0.12",
-        "langsmith": "^0.3.64",
+        "langsmith": ">=0.4.0 <1.0.0",
         "mustache": "^4.2.0",
         "p-queue": "^6.6.2",
         "uuid": "^10.0.0",
@@ -877,6 +878,7 @@
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       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "undici-types": "~6.21.0"
       }
@@ -1920,6 +1922,7 @@
       "resolved": "https://registry.npmjs.org/express/-/express-5.2.1.tgz",
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       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "accepts": "^2.0.0",
         "body-parser": "^2.2.1",
@@ -2609,9 +2612,9 @@
       }
     },
     "node_modules/langsmith": {
-      "version": "0.3.82",
-      "resolved": "https://registry.npmjs.org/langsmith/-/langsmith-0.3.82.tgz",
-      "integrity": "sha512-RTcxtRm0zp2lV+pMesMW7EZSsIlqN7OmR2F6sZ/sOFQwmcLVl+VErMPV4VkX4Sycs4/EIAFT5hpr36EqiHoikQ==",
+      "version": "0.4.2",
+      "resolved": "https://registry.npmjs.org/langsmith/-/langsmith-0.4.2.tgz",
+      "integrity": "sha512-BvBeFgSmR9esl8x5wsiDlALiHKKPybw2wE2Hh6x1tgSZki46H9c9KI9/06LARbPhyyDu/TZU7exfg6fnhdj1Qg==",
       "license": "MIT",
       "dependencies": {
         "@types/uuid": "^10.0.0",
@@ -4350,6 +4353,7 @@
       "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
       "dev": true,
       "license": "Apache-2.0",
+      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -4552,20 +4556,10 @@
       "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
       "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
       "license": "MIT",
+      "peer": true,
       "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==",
-      "license": "ISC",
-      "optional": true,
-      "peer": true,
-      "peerDependencies": {
-        "zod": "^3.24.1"
-      }
     }
   }
 }
diff --git a/package.json b/package.json
index 5a8ab0c..12a2931 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "@azure/ai-projects": "^2.0.0-beta.2",
     "@azure/identity": "^4.13.0",
-    "@langchain/core": "^1.1.4",
+    "@langchain/core": "^1.1.8",
     "@langchain/langgraph": "^1.0.4",
     "@langchain/langgraph-supervisor": "^1.0.0",
     "@langchain/openai": "^1.1.3",