diff --git a/samples/langchain_on_vertexai/requirements.txt b/samples/langchain_on_vertexai/requirements.txt
index eefcdafd..88f43dcf 100644
--- a/samples/langchain_on_vertexai/requirements.txt
+++ b/samples/langchain_on_vertexai/requirements.txt
@@ -1,6 +1,6 @@
 google-cloud-aiplatform[reasoningengine,langchain]==1.109.0
 langchain-google-alloydb-pg==0.12.0
-langchain-google-vertexai==2.0.28
+langchain-google-vertexai==3.0.1
 google-cloud-resource-manager==1.14.2
 langchain-community==0.3.27
 # Required to fix: "PydanticUndefinedAnnotation: name 'SafetySetting' is not defined"