diff --git a/homeassistant/components/nexia/climate.py b/homeassistant/components/nexia/climate.py
index 2c1fbf5a3f4..6212541f897 100644
--- a/homeassistant/components/nexia/climate.py
+++ b/homeassistant/components/nexia/climate.py
@@ -11,6 +11,7 @@ from nexia.const import (
     SYSTEM_STATUS_IDLE,
     UNIT_FAHRENHEIT,
 )
+from nexia.util import find_humidity_setpoint
 import voluptuous as vol
 
 from homeassistant.components.climate import ClimateEntity
@@ -58,6 +59,8 @@ from .coordinator import NexiaDataUpdateCoordinator
 from .entity import NexiaThermostatZoneEntity
 from .util import percent_conv
 
+PARALLEL_UPDATES = 1  # keep data in sync with only one connection at a time
+
 SERVICE_SET_AIRCLEANER_MODE = "set_aircleaner_mode"
 SERVICE_SET_HUMIDIFY_SETPOINT = "set_humidify_setpoint"
 SERVICE_SET_HVAC_RUN_MODE = "set_hvac_run_mode"
@@ -231,9 +234,9 @@ class NexiaZone(NexiaThermostatZoneEntity, ClimateEntity):
     def set_humidity(self, humidity):
         """Dehumidify target."""
         if self._thermostat.has_dehumidify_support():
-            self._thermostat.set_dehumidify_setpoint(humidity / 100.0)
+            self.set_dehumidify_setpoint(humidity)
         else:
-            self._thermostat.set_humidify_setpoint(humidity / 100.0)
+            self.set_humidify_setpoint(humidity)
         self._signal_thermostat_update()
 
     @property
@@ -453,7 +456,22 @@ class NexiaZone(NexiaThermostatZoneEntity, ClimateEntity):
 
     def set_humidify_setpoint(self, humidity):
         """Set the humidify setpoint."""
-        self._thermostat.set_humidify_setpoint(humidity / 100.0)
+        target_humidity = find_humidity_setpoint(humidity / 100.0)
+        if self._thermostat.get_humidify_setpoint() == target_humidity:
+            # Trying to set the humidify setpoint to the
+            # same value will cause the api to timeout
+            return
+        self._thermostat.set_humidify_setpoint(target_humidity)
+        self._signal_thermostat_update()
+
+    def set_dehumidify_setpoint(self, humidity):
+        """Set the dehumidify setpoint."""
+        target_humidity = find_humidity_setpoint(humidity / 100.0)
+        if self._thermostat.get_dehumidify_setpoint() == target_humidity:
+            # Trying to set the dehumidify setpoint to the
+            # same value will cause the api to timeout
+            return
+        self._thermostat.set_dehumidify_setpoint(target_humidity)
         self._signal_thermostat_update()
 
     def _signal_thermostat_update(self):
diff --git a/homeassistant/components/nexia/manifest.json b/homeassistant/components/nexia/manifest.json
index 105cbdb62b7..624eee41db7 100644
--- a/homeassistant/components/nexia/manifest.json
+++ b/homeassistant/components/nexia/manifest.json
@@ -1,7 +1,7 @@
 {
   "domain": "nexia",
   "name": "Nexia/American Standard/Trane",
-  "requirements": ["nexia==0.9.11"],
+  "requirements": ["nexia==0.9.12"],
   "codeowners": ["@bdraco"],
   "documentation": "https://www.home-assistant.io/integrations/nexia",
   "config_flow": true,
diff --git a/requirements_all.txt b/requirements_all.txt
index f9d97f36b5b..f7319f1dfaf 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1074,7 +1074,7 @@ nettigo-air-monitor==1.2.1
 neurio==0.3.1
 
 # homeassistant.components.nexia
-nexia==0.9.11
+nexia==0.9.12
 
 # homeassistant.components.nextcloud
 nextcloudmonitor==1.1.0
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 2008007ac04..c71b96b35df 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -663,7 +663,7 @@ netmap==0.7.0.2
 nettigo-air-monitor==1.2.1
 
 # homeassistant.components.nexia
-nexia==0.9.11
+nexia==0.9.12
 
 # homeassistant.components.nfandroidtv
 notifications-android-tv==0.1.3