diff --git a/appsync-bedrock-subscriptions-cdk/package.json b/appsync-bedrock-subscriptions-cdk/package.json
index 2b5783c09..eba9598d8 100644
--- a/appsync-bedrock-subscriptions-cdk/package.json
+++ b/appsync-bedrock-subscriptions-cdk/package.json
@@ -32,6 +32,6 @@
     "aws-cdk-lib": "2.80.0",
     "babel-jest": "^29.7.0",
     "constructs": "^10.0.0",
-    "langchain": "^0.0.169"
+    "langchain": "^0.3.5"
   }
 }
\ No newline at end of file