diff --git a/homeassistant/components/proximity/__init__.py b/homeassistant/components/proximity/__init__.py
index edd50146559..0567c551d98 100644
--- a/homeassistant/components/proximity/__init__.py
+++ b/homeassistant/components/proximity/__init__.py
@@ -13,10 +13,10 @@ from homeassistant.const import (
     CONF_ZONE,
     UnitOfLength,
 )
-from homeassistant.core import HomeAssistant, State
+from homeassistant.core import HomeAssistant, State, callback
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
-from homeassistant.helpers.event import track_state_change
+from homeassistant.helpers.event import async_track_state_change
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.util.location import distance
 from homeassistant.util.unit_conversion import DistanceConverter
@@ -62,7 +62,8 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def setup_proximity_component(
+@callback
+def async_setup_proximity_component(
     hass: HomeAssistant, name: str, config: ConfigType
 ) -> bool:
     """Set up the individual proximity component."""
@@ -89,17 +90,19 @@ def setup_proximity_component(
     )
     proximity.entity_id = f"{DOMAIN}.{proximity_zone}"
 
-    proximity.schedule_update_ha_state()
+    proximity.async_write_ha_state()
 
-    track_state_change(hass, proximity_devices, proximity.check_proximity_state_change)
+    async_track_state_change(
+        hass, proximity_devices, proximity.async_check_proximity_state_change
+    )
 
     return True
 
 
-def setup(hass: HomeAssistant, config: ConfigType) -> bool:
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Get the zones and offsets from configuration.yaml."""
     for zone, proximity_config in config[DOMAIN].items():
-        setup_proximity_component(hass, zone, proximity_config)
+        async_setup_proximity_component(hass, zone, proximity_config)
 
     return True
 
@@ -152,7 +155,8 @@ class Proximity(Entity):
         """Return the state attributes."""
         return {ATTR_DIR_OF_TRAVEL: self.dir_of_travel, ATTR_NEAREST: self.nearest}
 
-    def check_proximity_state_change(
+    @callback
+    def async_check_proximity_state_change(
         self, entity: str, old_state: State | None, new_state: State | None
     ) -> None:
         """Perform the proximity checking."""
@@ -192,7 +196,7 @@ class Proximity(Entity):
             self.dist_to = "not set"
             self.dir_of_travel = "not set"
             self.nearest = "not set"
-            self.schedule_update_ha_state()
+            self.async_write_ha_state()
             return
 
         # At least one device is in the monitored zone so update the entity.
@@ -200,7 +204,7 @@ class Proximity(Entity):
             self.dist_to = 0
             self.dir_of_travel = "arrived"
             self.nearest = devices_in_zone
-            self.schedule_update_ha_state()
+            self.async_write_ha_state()
             return
 
         # We can't check proximity because latitude and longitude don't exist.
@@ -254,7 +258,7 @@ class Proximity(Entity):
             device_state = self.hass.states.get(closest_device)
             assert device_state
             self.nearest = device_state.name
-            self.schedule_update_ha_state()
+            self.async_write_ha_state()
             return
 
         # Stop if we cannot calculate the direction of travel (i.e. we don't
@@ -263,7 +267,7 @@ class Proximity(Entity):
             self.dist_to = round(distances_to_zone[entity])
             self.dir_of_travel = "unknown"
             self.nearest = entity_name
-            self.schedule_update_ha_state()
+            self.async_write_ha_state()
             return
 
         # Reset the variables
@@ -299,7 +303,7 @@ class Proximity(Entity):
         )
         self.dir_of_travel = direction_of_travel
         self.nearest = entity_name
-        self.schedule_update_ha_state()
+        self.async_write_ha_state()
         _LOGGER.debug(
             "proximity.%s update entity: distance=%s: direction=%s: device=%s",
             self.friendly_name,