diff --git a/homeassistant/components/flexit_bacnet/climate.py b/homeassistant/components/flexit_bacnet/climate.py
index 28f4a6ae178a..c15cb59a6f38 100644
--- a/homeassistant/components/flexit_bacnet/climate.py
+++ b/homeassistant/components/flexit_bacnet/climate.py
@@ -19,7 +19,7 @@ from homeassistant.components.climate import (
     HVACMode,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import ATTR_TEMPERATURE, PRECISION_WHOLE, UnitOfTemperature
+from homeassistant.const import ATTR_TEMPERATURE, PRECISION_HALVES, UnitOfTemperature
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers.device_registry import DeviceInfo
@@ -65,7 +65,7 @@ class FlexitClimateEntity(ClimateEntity):
         ClimateEntityFeature.PRESET_MODE | ClimateEntityFeature.TARGET_TEMPERATURE
     )
 
-    _attr_target_temperature_step = PRECISION_WHOLE
+    _attr_target_temperature_step = PRECISION_HALVES
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
 
     def __init__(self, device: FlexitBACnet) -> None: