diff --git a/haystack/utils/doc_store.py b/haystack/utils/doc_store.py
index ccdb71554..5000efe4a 100644
--- a/haystack/utils/doc_store.py
+++ b/haystack/utils/doc_store.py
@@ -37,7 +37,7 @@ def launch_es(sleep=15, delete_existing=False):
         time.sleep(sleep)
 
 
-def launch_opensearch(sleep=15, delete_existing=False):
+def launch_opensearch(sleep=15, delete_existing=False, local_port=9200):
     """
     Start an OpenSearch server via Docker.
     """
@@ -48,7 +48,7 @@ def launch_opensearch(sleep=15, delete_existing=False):
         _ = subprocess.run([f"docker rm --force {OPENSEARCH_CONTAINER_NAME}"], shell=True, stdout=subprocess.DEVNULL)
     status = subprocess.run(
         [
-            f'docker start {OPENSEARCH_CONTAINER_NAME} > /dev/null 2>&1 || docker run -d -p 9201:9200 -p 9600:9600 -e "discovery.type=single-node" --name {OPENSEARCH_CONTAINER_NAME} opensearchproject/opensearch:1.3.5'
+            f'docker start {OPENSEARCH_CONTAINER_NAME} > /dev/null 2>&1 || docker run -d -p {local_port}:9200 -p 9600:9600 -e "discovery.type=single-node" --name {OPENSEARCH_CONTAINER_NAME} opensearchproject/opensearch:1.3.5'
         ],
         shell=True,
     )
diff --git a/test/benchmarks/utils.py b/test/benchmarks/utils.py
index 0625e9bad..1e3bfbe02 100644
--- a/test/benchmarks/utils.py
+++ b/test/benchmarks/utils.py
@@ -93,7 +93,7 @@ def get_document_store(document_store_type, similarity="dot_product", index="doc
         )
         assert document_store.get_document_count() == 0
     elif document_store_type in ("opensearch_flat", "opensearch_hnsw"):
-        launch_opensearch()
+        launch_opensearch(local_port=9201)
         if document_store_type == "opensearch_flat":
             index_type = "flat"
         elif document_store_type == "opensearch_hnsw":