diff --git a/pyhon/appliance.py b/pyhon/appliance.py
index 4a2d07c..3586f4a 100644
--- a/pyhon/appliance.py
+++ b/pyhon/appliance.py
@@ -94,15 +94,15 @@ class HonAppliance:
 
     @property
     def appliance_model_id(self) -> str:
-        return self._info.get("applianceModelId", "")
+        return str(self._info.get("applianceModelId", ""))
 
     @property
     def appliance_type(self) -> str:
-        return self._info.get("applianceTypeName", "")
+        return str(self._info.get("applianceTypeName", ""))
 
     @property
     def mac_address(self) -> str:
-        return self.info.get("macAddress", "")
+        return str(self.info.get("macAddress", ""))
 
     @property
     def unique_id(self) -> str:
@@ -138,11 +138,11 @@ class HonAppliance:
 
     @property
     def model_id(self) -> int:
-        return self._info.get("applianceModelId", 0)
+        return int(self._info.get("applianceModelId", 0))
 
     @property
     def options(self) -> Dict[str, Any]:
-        return self._appliance_model.get("options", {})
+        return dict(self._appliance_model.get("options", {}))
 
     @property
     def commands(self) -> Dict[str, HonCommand]:
diff --git a/requirements_dev.txt b/requirements_dev.txt
index f93ef2f..baeaf1c 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
 black~=23.9
 flake8~=6.1
-mypy~=1.4
+mypy~=1.6
 pylint~=3.0