diff --git a/nodejs/langchain/quickstart-before/package.json b/nodejs/langchain/quickstart-before/package.json
index 5700acd3..0ce9d629 100644
--- a/nodejs/langchain/quickstart-before/package.json
+++ b/nodejs/langchain/quickstart-before/package.json
@@ -18,7 +18,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "@langchain/core": "*",
+    "@langchain/core": "^1.1.8",
     "@langchain/langgraph": "*",
     "@langchain/mcp-adapters": "*",
     "@langchain/openai": "*",
diff --git a/nodejs/langchain/sample-agent/package.json b/nodejs/langchain/sample-agent/package.json
index 2651c12b..7b9e5a4d 100644
--- a/nodejs/langchain/sample-agent/package.json
+++ b/nodejs/langchain/sample-agent/package.json
@@ -19,7 +19,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "@langchain/core": "^1.0.2",
+    "@langchain/core": "^1.1.8",
     "@langchain/langgraph": "^1.0.2",
     "@langchain/mcp-adapters": "^1.0.0",
     "@langchain/openai": "^1.0.2",