diff --git a/benchmarks/osb/README.md b/benchmarks/osb/README.md
index 0f806a344..0d0b05f8d 100644
--- a/benchmarks/osb/README.md
+++ b/benchmarks/osb/README.md
@@ -1,3 +1,4 @@
+# IMPORTANT NOTE: No new features will be added to this tool . This tool is currently in maintanence mode. All new features will be added to [vector search workload]( https://github.com/opensearch-project/opensearch-benchmark-workloads/tree/main/vectorsearch)
 # OpenSearch Benchmarks for k-NN
 
 ## Overview
diff --git a/benchmarks/perf-tool/README.md b/benchmarks/perf-tool/README.md
index 52590d22b..36f76bcdb 100644
--- a/benchmarks/perf-tool/README.md
+++ b/benchmarks/perf-tool/README.md
@@ -1,3 +1,5 @@
+# IMPORTANT NOTE: No new features will be added to this tool . This tool is currently in maintanence mode. All new features will be added to [vector search workload]( https://github.com/opensearch-project/opensearch-benchmark-workloads/tree/main/vectorsearch)
+
 # OpenSearch k-NN Benchmarking
 - [Welcome!](#welcome)
 - [Install Prerequisites](#install-prerequisites)