diff --git a/package-lock.json b/package-lock.json
index b675a90..12d5e7f 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": "^1.1.19",
         "@langchain/langgraph": "^1.0.4",
         "@langchain/langgraph-supervisor": "^1.0.0",
         "@langchain/openai": "^1.1.3",
@@ -522,9 +522,9 @@
       "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": "1.1.19",
+      "resolved": "https://registry.npmjs.org/@langchain/core/-/core-1.1.19.tgz",
+      "integrity": "sha512-hmNAcgeLLqNLnu8UK+HVTfB8170eCmAfsy4gFLBYeE+kdsnyO0Hd/Kd42pZi8Cgfux4OMX3yxl+g+/a1ktGe0A==",
       "license": "MIT",
       "dependencies": {
         "@cfworker/json-schema": "^4.0.2",
@@ -532,7 +532,7 @@
         "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",
@@ -2609,9 +2609,9 @@
       }
     },
     "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": "0.5.0",
+      "resolved": "https://registry.npmjs.org/langsmith/-/langsmith-0.5.0.tgz",
+      "integrity": "sha512-5U9Ar/wAu5vyTBBImvMLrM9sjynHzN703oLHScEqJaXWE6gm+uti0rWDryQZ6ObnuqSNa4IOUudYej9X6VNEwg==",
       "license": "MIT",
       "dependencies": {
         "@types/uuid": "^10.0.0",
@@ -4555,17 +4555,6 @@
       "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==",
-      "license": "ISC",
-      "optional": true,
-      "peer": true,
-      "peerDependencies": {
-        "zod": "^3.24.1"
-      }
     }
   }
 }
diff --git a/package.json b/package.json
index 5a8ab0c..6cabf87 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": "^1.1.19",
     "@langchain/langgraph": "^1.0.4",
     "@langchain/langgraph-supervisor": "^1.0.0",
     "@langchain/openai": "^1.1.3",