diff --git a/homeassistant/components/panasonic_viera/__init__.py b/homeassistant/components/panasonic_viera/__init__.py
index b2f3bbba91a..2cf91792800 100644
--- a/homeassistant/components/panasonic_viera/__init__.py
+++ b/homeassistant/components/panasonic_viera/__init__.py
@@ -196,10 +196,10 @@ class Remote:
         self.muted = self._control.get_mute()
         self.volume = self._control.get_volume() / 100
 
-    async def async_send_key(self, key):
+    async def async_send_key(self, key: Keys | str) -> None:
         """Send a key to the TV and handle exceptions."""
         try:
-            key = getattr(Keys, key)
+            key = getattr(Keys, key.upper())
         except (AttributeError, TypeError):
             key = getattr(key, "value", key)
 
@@ -211,13 +211,13 @@ class Remote:
             await self._on_action.async_run(context=context)
             await self.async_update()
         elif self.state != STATE_ON:
-            await self.async_send_key(Keys.power)
+            await self.async_send_key(Keys.POWER)
             await self.async_update()
 
     async def async_turn_off(self):
         """Turn off the TV."""
         if self.state != STATE_OFF:
-            await self.async_send_key(Keys.power)
+            await self.async_send_key(Keys.POWER)
             self.state = STATE_OFF
             await self.async_update()
 
diff --git a/homeassistant/components/panasonic_viera/manifest.json b/homeassistant/components/panasonic_viera/manifest.json
index 2afa6599cb2..d9809e5883a 100644
--- a/homeassistant/components/panasonic_viera/manifest.json
+++ b/homeassistant/components/panasonic_viera/manifest.json
@@ -6,5 +6,5 @@
   "documentation": "https://www.home-assistant.io/integrations/panasonic_viera",
   "iot_class": "local_polling",
   "loggers": ["panasonic_viera"],
-  "requirements": ["panasonic-viera==0.3.6"]
+  "requirements": ["panasonic-viera==0.4.2"]
 }
diff --git a/homeassistant/components/panasonic_viera/media_player.py b/homeassistant/components/panasonic_viera/media_player.py
index 44063022129..76ca76c1ca6 100644
--- a/homeassistant/components/panasonic_viera/media_player.py
+++ b/homeassistant/components/panasonic_viera/media_player.py
@@ -126,11 +126,11 @@ class PanasonicVieraTVEntity(MediaPlayerEntity):
 
     async def async_volume_up(self) -> None:
         """Volume up the media player."""
-        await self._remote.async_send_key(Keys.volume_up)
+        await self._remote.async_send_key(Keys.VOLUME_UP)
 
     async def async_volume_down(self) -> None:
         """Volume down media player."""
-        await self._remote.async_send_key(Keys.volume_down)
+        await self._remote.async_send_key(Keys.VOLUME_DOWN)
 
     async def async_mute_volume(self, mute: bool) -> None:
         """Send mute command."""
@@ -143,33 +143,33 @@ class PanasonicVieraTVEntity(MediaPlayerEntity):
     async def async_media_play_pause(self) -> None:
         """Simulate play pause media player."""
         if self._remote.playing:
-            await self._remote.async_send_key(Keys.pause)
+            await self._remote.async_send_key(Keys.PAUSE)
             self._remote.playing = False
         else:
-            await self._remote.async_send_key(Keys.play)
+            await self._remote.async_send_key(Keys.PLAY)
             self._remote.playing = True
 
     async def async_media_play(self) -> None:
         """Send play command."""
-        await self._remote.async_send_key(Keys.play)
+        await self._remote.async_send_key(Keys.PLAY)
         self._remote.playing = True
 
     async def async_media_pause(self) -> None:
         """Send pause command."""
-        await self._remote.async_send_key(Keys.pause)
+        await self._remote.async_send_key(Keys.PAUSE)
         self._remote.playing = False
 
     async def async_media_stop(self) -> None:
         """Stop playback."""
-        await self._remote.async_send_key(Keys.stop)
+        await self._remote.async_send_key(Keys.STOP)
 
     async def async_media_next_track(self) -> None:
         """Send the fast forward command."""
-        await self._remote.async_send_key(Keys.fast_forward)
+        await self._remote.async_send_key(Keys.FAST_FORWARD)
 
     async def async_media_previous_track(self) -> None:
         """Send the rewind command."""
-        await self._remote.async_send_key(Keys.rewind)
+        await self._remote.async_send_key(Keys.REWIND)
 
     async def async_play_media(
         self, media_type: MediaType | str, media_id: str, **kwargs: Any
diff --git a/requirements_all.txt b/requirements_all.txt
index d2e51a365e7..57cbb7b7710 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1528,7 +1528,7 @@ paho-mqtt==1.6.1
 panacotta==0.2
 
 # homeassistant.components.panasonic_viera
-panasonic-viera==0.3.6
+panasonic-viera==0.4.2
 
 # homeassistant.components.dunehd
 pdunehd==1.3.2
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 21e6eedebc7..306b791488a 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1228,7 +1228,7 @@ p1monitor==3.0.0
 paho-mqtt==1.6.1
 
 # homeassistant.components.panasonic_viera
-panasonic-viera==0.3.6
+panasonic-viera==0.4.2
 
 # homeassistant.components.dunehd
 pdunehd==1.3.2
diff --git a/tests/components/panasonic_viera/test_remote.py b/tests/components/panasonic_viera/test_remote.py
index 05254753d3f..3ae241fc5e9 100644
--- a/tests/components/panasonic_viera/test_remote.py
+++ b/tests/components/panasonic_viera/test_remote.py
@@ -46,7 +46,7 @@ async def test_onoff(hass: HomeAssistant, mock_remote) -> None:
     await hass.services.async_call(REMOTE_DOMAIN, SERVICE_TURN_ON, data)
     await hass.async_block_till_done()
 
-    power = getattr(Keys.power, "value", Keys.power)
+    power = getattr(Keys.POWER, "value", Keys.POWER)
     assert mock_remote.send_key.call_args_list == [call(power), call(power)]