diff --git a/homeassistant/components/cover/__init__.py b/homeassistant/components/cover/__init__.py
index 072710aa947..98bb2f4909f 100644
--- a/homeassistant/components/cover/__init__.py
+++ b/homeassistant/components/cover/__init__.py
@@ -218,7 +218,7 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 class CoverEntityDescription(EntityDescription):
     """A class that describes cover entities."""
 
-    device_class: CoverDeviceClass | str | None = None
+    device_class: CoverDeviceClass | None = None
 
 
 class CoverEntity(Entity):
@@ -227,7 +227,7 @@ class CoverEntity(Entity):
     entity_description: CoverEntityDescription
     _attr_current_cover_position: int | None = None
     _attr_current_cover_tilt_position: int | None = None
-    _attr_device_class: CoverDeviceClass | str | None
+    _attr_device_class: CoverDeviceClass | None
     _attr_is_closed: bool | None
     _attr_is_closing: bool | None = None
     _attr_is_opening: bool | None = None
@@ -253,7 +253,7 @@ class CoverEntity(Entity):
         return self._attr_current_cover_tilt_position
 
     @property
-    def device_class(self) -> CoverDeviceClass | str | None:
+    def device_class(self) -> CoverDeviceClass | None:
         """Return the class of this entity."""
         if hasattr(self, "_attr_device_class"):
             return self._attr_device_class
diff --git a/homeassistant/components/homematicip_cloud/cover.py b/homeassistant/components/homematicip_cloud/cover.py
index 7038c423df0..e5007b5a15f 100644
--- a/homeassistant/components/homematicip_cloud/cover.py
+++ b/homeassistant/components/homematicip_cloud/cover.py
@@ -69,7 +69,7 @@ class HomematicipBlindModule(HomematicipGenericEntity, CoverEntity):
     """Representation of the HomematicIP blind module."""
 
     @property
-    def device_class(self) -> str:
+    def device_class(self) -> CoverDeviceClass:
         """Return the class of the cover."""
         return CoverDeviceClass.BLIND
 
@@ -162,7 +162,7 @@ class HomematicipMultiCoverShutter(HomematicipGenericEntity, CoverEntity):
         )
 
     @property
-    def device_class(self) -> str:
+    def device_class(self) -> CoverDeviceClass:
         """Return the class of the cover."""
         return CoverDeviceClass.SHUTTER
 
@@ -284,7 +284,7 @@ class HomematicipGarageDoorModule(HomematicipGenericEntity, CoverEntity):
         return door_state_to_position.get(self._device.doorState)
 
     @property
-    def device_class(self) -> str:
+    def device_class(self) -> CoverDeviceClass:
         """Return the class of the cover."""
         return CoverDeviceClass.GARAGE
 
@@ -315,7 +315,7 @@ class HomematicipCoverShutterGroup(HomematicipGenericEntity, CoverEntity):
         super().__init__(hap, device, post, is_multi_channel=False)
 
     @property
-    def device_class(self) -> str:
+    def device_class(self) -> CoverDeviceClass:
         """Return the class of the cover."""
         return CoverDeviceClass.SHUTTER
 
diff --git a/homeassistant/components/netatmo/cover.py b/homeassistant/components/netatmo/cover.py
index 6d755d828d3..41bf84c8334 100644
--- a/homeassistant/components/netatmo/cover.py
+++ b/homeassistant/components/netatmo/cover.py
@@ -99,7 +99,7 @@ class NetatmoCover(NetatmoBase, CoverEntity):
         await self._cover.async_set_target_position(kwargs[ATTR_POSITION])
 
     @property
-    def device_class(self) -> str:
+    def device_class(self) -> CoverDeviceClass:
         """Return the device class."""
         return CoverDeviceClass.SHUTTER
 
diff --git a/homeassistant/components/overkiz/cover_entities/vertical_cover.py b/homeassistant/components/overkiz/cover_entities/vertical_cover.py
index 1459786c23f..18a9f176593 100644
--- a/homeassistant/components/overkiz/cover_entities/vertical_cover.py
+++ b/homeassistant/components/overkiz/cover_entities/vertical_cover.py
@@ -65,15 +65,12 @@ class VerticalCover(OverkizGenericCover):
         return supported_features
 
     @property
-    def device_class(self) -> str:
+    def device_class(self) -> CoverDeviceClass:
         """Return the class of the device."""
-        return cast(
-            str,
-            (
-                OVERKIZ_DEVICE_TO_DEVICE_CLASS.get(self.device.widget)
-                or OVERKIZ_DEVICE_TO_DEVICE_CLASS.get(self.device.ui_class)
-                or CoverDeviceClass.BLIND
-            ),
+        return (
+            OVERKIZ_DEVICE_TO_DEVICE_CLASS.get(self.device.widget)
+            or OVERKIZ_DEVICE_TO_DEVICE_CLASS.get(self.device.ui_class)
+            or CoverDeviceClass.BLIND
         )
 
     @property
diff --git a/pylint/plugins/hass_enforce_type_hints.py b/pylint/plugins/hass_enforce_type_hints.py
index 24f06bc8cd1..5925c833b29 100644
--- a/pylint/plugins/hass_enforce_type_hints.py
+++ b/pylint/plugins/hass_enforce_type_hints.py
@@ -1086,7 +1086,7 @@ _INHERITANCE_MATCH: dict[str, list[ClassTypeHintMatch]] = {
             matches=[
                 TypeHintMatch(
                     function_name="device_class",
-                    return_type=["CoverDeviceClass", "str", None],
+                    return_type=["CoverDeviceClass", None],
                 ),
                 TypeHintMatch(
                     function_name="current_cover_position",
diff --git a/tests/pylint/test_enforce_type_hints.py b/tests/pylint/test_enforce_type_hints.py
index 9abd2c89a74..665a4d6594c 100644
--- a/tests/pylint/test_enforce_type_hints.py
+++ b/tests/pylint/test_enforce_type_hints.py
@@ -898,7 +898,7 @@ def test_invalid_device_class(
         pylint.testutils.MessageTest(
             msg_id="hass-return-type",
             node=prop_node,
-            args=(["CoverDeviceClass", "str", None], "device_class"),
+            args=(["CoverDeviceClass", None], "device_class"),
             line=12,
             col_offset=4,
             end_line=12,