diff --git a/.strict-typing b/.strict-typing
index 2a6e9b04cbe..4a4151ce606 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -136,6 +136,7 @@ homeassistant.components.fully_kiosk.*
 homeassistant.components.geo_location.*
 homeassistant.components.geocaching.*
 homeassistant.components.gios.*
+homeassistant.components.glances.*
 homeassistant.components.goalzero.*
 homeassistant.components.google.*
 homeassistant.components.google_sheets.*
diff --git a/homeassistant/components/glances/coordinator.py b/homeassistant/components/glances/coordinator.py
index 24a2e23a013..8d2bd0daaa3 100644
--- a/homeassistant/components/glances/coordinator.py
+++ b/homeassistant/components/glances/coordinator.py
@@ -35,6 +35,7 @@ class GlancesDataUpdateCoordinator(DataUpdateCoordinator[dict[str, Any]]):
     async def _async_update_data(self) -> dict[str, Any]:
         """Get the latest data from the Glances REST API."""
         try:
-            return await self.api.get_ha_sensor_data()
+            data = await self.api.get_ha_sensor_data()
         except exceptions.GlancesApiError as err:
             raise UpdateFailed from err
+        return data or {}
diff --git a/homeassistant/components/glances/sensor.py b/homeassistant/components/glances/sensor.py
index cd9c3a9135d..78aa5ffbf0a 100644
--- a/homeassistant/components/glances/sensor.py
+++ b/homeassistant/components/glances/sensor.py
@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 from dataclasses import dataclass
+from typing import cast
 
 from homeassistant.components.sensor import (
     SensorDeviceClass,
@@ -346,5 +347,7 @@ class GlancesSensor(CoordinatorEntity[GlancesDataUpdateCoordinator], SensorEntit
         value = self.coordinator.data[self.entity_description.type]
 
         if isinstance(value.get(self._sensor_name_prefix), dict):
-            return value[self._sensor_name_prefix][self.entity_description.key]
-        return value[self.entity_description.key]
+            return cast(
+                StateType, value[self._sensor_name_prefix][self.entity_description.key]
+            )
+        return cast(StateType, value[self.entity_description.key])
diff --git a/mypy.ini b/mypy.ini
index 178b82fd359..14eb6bba841 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1122,6 +1122,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.glances.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.goalzero.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true