diff --git a/samples/index_tuning_sample/requirements.txt b/samples/index_tuning_sample/requirements.txt
index 38630c9b..331bc988 100644
--- a/samples/index_tuning_sample/requirements.txt
+++ b/samples/index_tuning_sample/requirements.txt
@@ -1,3 +1,3 @@
-langchain-community==0.3.31
+langchain-community==0.4
 langchain-google-cloud-sql-pg==0.14.1
 langchain-google-vertexai==2.1.2