diff --git a/homeassistant/components/unifi/controller.py b/homeassistant/components/unifi/controller.py
index c1ffa0aa57d..59cbbb5b7fd 100644
--- a/homeassistant/components/unifi/controller.py
+++ b/homeassistant/components/unifi/controller.py
@@ -10,6 +10,7 @@ from typing import Any
 from aiohttp import CookieJar
 import aiounifi
 from aiounifi.interfaces.api_handlers import ItemEvent
+from aiounifi.models.configuration import Configuration
 from aiounifi.websocket import WebsocketState
 
 from homeassistant.config_entries import ConfigEntry
@@ -409,18 +410,19 @@ async def get_unifi_controller(
         )
 
     controller = aiounifi.Controller(
-        host=config[CONF_HOST],
-        username=config[CONF_USERNAME],
-        password=config[CONF_PASSWORD],
-        port=config[CONF_PORT],
-        site=config[CONF_SITE_ID],
-        websession=session,
-        ssl_context=ssl_context,
+        Configuration(
+            session,
+            host=config[CONF_HOST],
+            username=config[CONF_USERNAME],
+            password=config[CONF_PASSWORD],
+            port=config[CONF_PORT],
+            site=config[CONF_SITE_ID],
+            ssl_context=ssl_context,
+        )
     )
 
     try:
         async with asyncio.timeout(10):
-            await controller.check_unifi_os()
             await controller.login()
         return controller
 
diff --git a/homeassistant/components/unifi/manifest.json b/homeassistant/components/unifi/manifest.json
index 579e64c5862..363313bf878 100644
--- a/homeassistant/components/unifi/manifest.json
+++ b/homeassistant/components/unifi/manifest.json
@@ -8,7 +8,7 @@
   "iot_class": "local_push",
   "loggers": ["aiounifi"],
   "quality_scale": "platinum",
-  "requirements": ["aiounifi==55"],
+  "requirements": ["aiounifi==58"],
   "ssdp": [
     {
       "manufacturer": "Ubiquiti Networks",
diff --git a/requirements_all.txt b/requirements_all.txt
index d8d3890bbc6..ce37e1f72f1 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -360,7 +360,7 @@ aiosyncthing==0.5.1
 aiotractive==0.5.5
 
 # homeassistant.components.unifi
-aiounifi==55
+aiounifi==58
 
 # homeassistant.components.vlc_telnet
 aiovlc==0.1.0
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index dc7358f8811..9c319ef31f0 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -335,7 +335,7 @@ aiosyncthing==0.5.1
 aiotractive==0.5.5
 
 # homeassistant.components.unifi
-aiounifi==55
+aiounifi==58
 
 # homeassistant.components.vlc_telnet
 aiovlc==0.1.0
diff --git a/tests/components/unifi/test_controller.py b/tests/components/unifi/test_controller.py
index a2be388af4c..18fe92e6d64 100644
--- a/tests/components/unifi/test_controller.py
+++ b/tests/components/unifi/test_controller.py
@@ -395,9 +395,7 @@ async def test_reconnect_mechanism(
     await setup_unifi_integration(hass, aioclient_mock)
 
     aioclient_mock.clear_requests()
-    aioclient_mock.post(
-        f"https://{DEFAULT_HOST}:1234/api/login", status=HTTPStatus.BAD_GATEWAY
-    )
+    aioclient_mock.get(f"https://{DEFAULT_HOST}:1234/", status=HTTPStatus.BAD_GATEWAY)
 
     mock_unifi_websocket(state=WebsocketState.DISCONNECTED)
     await hass.async_block_till_done()
@@ -448,9 +446,7 @@ async def test_reconnect_mechanism_exceptions(
 
 async def test_get_unifi_controller(hass: HomeAssistant) -> None:
     """Successful call."""
-    with patch("aiounifi.Controller.check_unifi_os", return_value=True), patch(
-        "aiounifi.Controller.login", return_value=True
-    ):
+    with patch("aiounifi.Controller.login", return_value=True):
         assert await get_unifi_controller(hass, ENTRY_CONFIG)
 
 
@@ -458,9 +454,7 @@ async def test_get_unifi_controller_verify_ssl_false(hass: HomeAssistant) -> Non
     """Successful call with verify ssl set to false."""
     controller_data = dict(ENTRY_CONFIG)
     controller_data[CONF_VERIFY_SSL] = False
-    with patch("aiounifi.Controller.check_unifi_os", return_value=True), patch(
-        "aiounifi.Controller.login", return_value=True
-    ):
+    with patch("aiounifi.Controller.login", return_value=True):
         assert await get_unifi_controller(hass, controller_data)
 
 
@@ -481,7 +475,7 @@ async def test_get_unifi_controller_fails_to_connect(
     hass: HomeAssistant, side_effect, raised_exception
 ) -> None:
     """Check that get_unifi_controller can handle controller being unavailable."""
-    with patch("aiounifi.Controller.check_unifi_os", return_value=True), patch(
-        "aiounifi.Controller.login", side_effect=side_effect
-    ), pytest.raises(raised_exception):
+    with patch("aiounifi.Controller.login", side_effect=side_effect), pytest.raises(
+        raised_exception
+    ):
         await get_unifi_controller(hass, ENTRY_CONFIG)