diff --git a/CHANGELOG.md b/CHANGELOG.md
index 49cf56928..bae92bd0b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v1.14.3-1
+
+- Correct typing of select_schedule, manual fixture update
+
 ## v1.14.3
 
 - Change representation of no-thermostat-schedule-defined to a single `off` option via PR [#899](https://github.com/plugwise/python-plugwise/pull/899)
diff --git a/fixtures/m_adam_multiple_devices_per_zone/data.json b/fixtures/m_adam_multiple_devices_per_zone/data.json
index b1529e121..6b05f6bc0 100644
--- a/fixtures/m_adam_multiple_devices_per_zone/data.json
+++ b/fixtures/m_adam_multiple_devices_per_zone/data.json
@@ -128,7 +128,9 @@
   },
   "446ac08dd04d4eff8ac57489757b7314": {
     "active_preset": "no_frost",
-    "available_schedules": [],
+    "available_schedules": [
+      "off"
+    ],
     "climate_mode": "heat",
     "control_state": "idle",
     "dev_class": "climate",
@@ -141,7 +143,7 @@
       "vacation",
       "no_frost"
     ],
-    "select_schedule": null,
+    "select_schedule": "off",
     "sensors": {
       "temperature": 15.6
     },
diff --git a/plugwise/__init__.py b/plugwise/__init__.py
index f91308726..2165322c3 100644
--- a/plugwise/__init__.py
+++ b/plugwise/__init__.py
@@ -60,8 +60,8 @@ def __init__(
             password,
             port,
             self._timeout,
-            username,
-            websession,
+            username=username,
+            websession=websession,
         )
 
         self._cooling_present = False
diff --git a/plugwise/constants.py b/plugwise/constants.py
index 327862ae3..a35ea6042 100644
--- a/plugwise/constants.py
+++ b/plugwise/constants.py
@@ -584,7 +584,7 @@ class GwEntityData(TypedDict, total=False):
     preset_modes: list[str] | None
     # Schedules:
     available_schedules: list[str]
-    select_schedule: str | None
+    select_schedule: str
 
     climate_mode: str
     # Extra for Adam Master Thermostats
diff --git a/plugwise/smilecomm.py b/plugwise/smilecomm.py
index 7d3425587..e770ec7d2 100644
--- a/plugwise/smilecomm.py
+++ b/plugwise/smilecomm.py
@@ -34,6 +34,7 @@ def __init__(
         password: str,
         port: int,
         timeout: int,
+        *,
         username: str,
         websession: ClientSession | None,
     ) -> None:
diff --git a/pyproject.toml b/pyproject.toml
index 4b8b585c5..c072e3c88 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name            = "plugwise"
-version         = "1.14.3"
+version         = "1.14.3-1"
 license         = "MIT"
 description     = "Plugwise Smile (Adam/Anna/P1) and Stretch module for Python 3."
 readme          = "README.md"
diff --git a/scripts/manual_fixtures.py b/scripts/manual_fixtures.py
index fd25e76df..7e51caa69 100755
--- a/scripts/manual_fixtures.py
+++ b/scripts/manual_fixtures.py
@@ -38,10 +38,10 @@ def json_writer(manual_name: str, output: dict) -> None:
 # Change schedule to not present for "446ac08dd04d4eff8ac57489757b7314"
 adam_multiple_devices_per_zone["446ac08dd04d4eff8ac57489757b7314"][
     "available_schedules"
-] = []
+] = ["off"]
 adam_multiple_devices_per_zone["446ac08dd04d4eff8ac57489757b7314"][
     "select_schedule"
-] = None
+] = "off"
 
 json_writer("m_adam_multiple_devices_per_zone", adam_multiple_devices_per_zone)
 
diff --git a/tests/test_init.py b/tests/test_init.py
index bcf09f765..938444051 100644
--- a/tests/test_init.py
+++ b/tests/test_init.py
@@ -283,6 +283,7 @@ async def connect(
         broken=False,
         fail_auth=False,
         raise_timeout=False,
+        *,
         smile_timeout_value=10,
         stretch=False,
         timeout_happened=False,
@@ -728,7 +729,7 @@ async def tinker_thermostat_preset(self, api, loc_id, unhappy=False):
 
     @pytest.mark.asyncio
     async def tinker_thermostat_schedule(
-        self, api, loc_id, state, good_schedules=None, single=False, unhappy=False
+        self, api, loc_id, state, *, good_schedules=None, single=False, unhappy=False
     ):
         """Toggle schedules to test functionality."""
         # pragma warning disable S3776
@@ -798,6 +799,7 @@ async def tinker_thermostat(
         self,
         api,
         loc_id,
+        *,
         schedule_on=True,
         good_schedules=None,
         single=False,
@@ -817,14 +819,29 @@ async def tinker_thermostat(
             for item in api._schedule_old_states[loc_id]:
                 api._schedule_old_states[loc_id][item] = "off"
         result_3 = await self.tinker_thermostat_schedule(
-            api, loc_id, "on", good_schedules, single, unhappy
+            api,
+            loc_id,
+            "on",
+            good_schedules=good_schedules,
+            single=single,
+            unhappy=unhappy,
         )
         if schedule_on:
             result_4 = await self.tinker_thermostat_schedule(
-                api, loc_id, "off", good_schedules, single, unhappy
+                api,
+                loc_id,
+                "off",
+                good_schedules=good_schedules,
+                single=single,
+                unhappy=unhappy,
             )
             result_5 = await self.tinker_thermostat_schedule(
-                api, loc_id, "on", good_schedules, single, unhappy
+                api,
+                loc_id,
+                "on",
+                good_schedules=good_schedules,
+                single=single,
+                unhappy=unhappy,
             )
             return result_1 and result_2 and result_3 and result_4 and result_5
         return result_1 and result_2 and result_3