diff --git a/samples/langchain_on_vertexai/requirements.txt b/samples/langchain_on_vertexai/requirements.txt
index 064bf76a..39be8490 100644
--- a/samples/langchain_on_vertexai/requirements.txt
+++ b/samples/langchain_on_vertexai/requirements.txt
@@ -1,5 +1,5 @@
-google-cloud-aiplatform[reasoningengine,langchain]==1.121.0
-google-cloud-resource-manager==1.14.2
-langchain-community==0.3.31
+google-cloud-aiplatform[reasoningengine,langchain]==1.133.0
+google-cloud-resource-manager==1.15.0
+langchain-community==0.4.1
 langchain-google-cloud-sql-pg==0.14.1
 langchain-google-vertexai==2.1.2