diff --git a/samples/index_tuning_sample/requirements.txt b/samples/index_tuning_sample/requirements.txt
index 94fe05d4..35c0439f 100644
--- a/samples/index_tuning_sample/requirements.txt
+++ b/samples/index_tuning_sample/requirements.txt
@@ -1,3 +1,3 @@
-langchain-community==0.3.27
-langchain-google-cloud-sql-pg==0.14.0
-langchain-google-vertexai==2.0.27
+langchain-community==0.3.29
+langchain-google-cloud-sql-pg==0.14.1
+langchain-google-vertexai==2.0.28