diff --git a/homeassistant/components/mill/climate.py b/homeassistant/components/mill/climate.py
index 1e578087b73..975bb2ff2c7 100644
--- a/homeassistant/components/mill/climate.py
+++ b/homeassistant/components/mill/climate.py
@@ -15,7 +15,6 @@ from homeassistant.const import (
     ATTR_TEMPERATURE,
     CONF_IP_ADDRESS,
     CONF_USERNAME,
-    PRECISION_HALVES,
     PRECISION_TENTHS,
     UnitOfTemperature,
 )
@@ -184,7 +183,7 @@ class LocalMillHeater(CoordinatorEntity[MillDataUpdateCoordinator], ClimateEntit
     _attr_min_temp = MIN_TEMP
     _attr_name = None
     _attr_supported_features = ClimateEntityFeature.TARGET_TEMPERATURE
-    _attr_target_temperature_step = PRECISION_HALVES
+    _attr_target_temperature_step = PRECISION_TENTHS
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
 
     def __init__(self, coordinator: MillDataUpdateCoordinator) -> None: