diff --git a/custom_components/gismeteo/const.py b/custom_components/gismeteo/const.py
index a0af16e..87c0f0e 100644
--- a/custom_components/gismeteo/const.py
+++ b/custom_components/gismeteo/const.py
@@ -168,7 +168,7 @@ class ForecastMode(StrEnum):
         key=ATTR_FORECAST_PRESSURE,
         translation_key="pressure",
         device_class=SensorDeviceClass.PRESSURE,
-        native_unit_of_measurement=UnitOfPressure.HPA,
+        native_unit_of_measurement=UnitOfPressure.MMHG,
     ),
     SensorEntityDescription(
         key=ATTR_FORECAST_PRECIPITATION_AMOUNT,
@@ -302,7 +302,7 @@ class ForecastMode(StrEnum):
         key=ATTR_FORECAST_PRESSURE,
         translation_key="pressure_forecast",
         device_class=SensorDeviceClass.PRESSURE,
-        native_unit_of_measurement=UnitOfPressure.HPA,
+        native_unit_of_measurement=UnitOfPressure.MMHG,
     ),
     SensorEntityDescription(
         key=ATTR_FORECAST_PRECIPITATION_AMOUNT,