diff --git a/tests/integration/test_opensearch.py b/tests/integration/test_opensearch.py
index 6d163e9..6274a80 100644
--- a/tests/integration/test_opensearch.py
+++ b/tests/integration/test_opensearch.py
@@ -99,7 +99,7 @@ async def deploy_opensearch(lxd_model: Model):
         lxd_model: The LXD model.
     """
     await asyncio.gather(
-        lxd_model.deploy("ch:opensearch", num_units=2, channel="2/edge"),
+        lxd_model.deploy("ch:opensearch", num_units=1, channel="2/edge"),
         lxd_model.deploy(
             "self-signed-certificates", num_units=1, channel="edge"
         ),