diff --git a/homeassistant/components/aruba/device_tracker.py b/homeassistant/components/aruba/device_tracker.py
index ecdcc5f70f2..dc2d2fee8e9 100644
--- a/homeassistant/components/aruba/device_tracker.py
+++ b/homeassistant/components/aruba/device_tracker.py
@@ -87,7 +87,7 @@ class ArubaDeviceScanner(DeviceScanner):
     def get_aruba_data(self):
         """Retrieve data from Aruba Access Point and return parsed result."""
 
-        connect = f"ssh {self.username}@{self.host}"
+        connect = f"ssh {self.username}@{self.host} -o HostKeyAlgorithms=ssh-rsa"
         ssh = pexpect.spawn(connect)
         query = ssh.expect(
             [