diff --git a/homeassistant/components/melcloud/manifest.json b/homeassistant/components/melcloud/manifest.json
index 4747059345f..aac8db678f9 100644
--- a/homeassistant/components/melcloud/manifest.json
+++ b/homeassistant/components/melcloud/manifest.json
@@ -3,6 +3,6 @@
   "name": "MELCloud",
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/melcloud",
-  "requirements": ["pymelcloud==2.4.1"],
+  "requirements": ["pymelcloud==2.5.2"],
   "codeowners": ["@vilppuvuorinen"]
 }
diff --git a/homeassistant/components/melcloud/sensor.py b/homeassistant/components/melcloud/sensor.py
index 9dee01c2fba..6ca69aefe2a 100644
--- a/homeassistant/components/melcloud/sensor.py
+++ b/homeassistant/components/melcloud/sensor.py
@@ -65,7 +65,23 @@ ATW_ZONE_SENSORS = {
         ATTR_DEVICE_CLASS: DEVICE_CLASS_TEMPERATURE,
         ATTR_VALUE_FN: lambda zone: zone.room_temperature,
         ATTR_ENABLED_FN: lambda x: True,
-    }
+    },
+    "flow_temperature": {
+        ATTR_MEASUREMENT_NAME: "Flow Temperature",
+        ATTR_ICON: "mdi:thermometer",
+        ATTR_UNIT_FN: lambda x: TEMP_UNIT_LOOKUP.get(x.device.temp_unit, TEMP_CELSIUS),
+        ATTR_DEVICE_CLASS: DEVICE_CLASS_TEMPERATURE,
+        ATTR_VALUE_FN: lambda zone: zone.flow_temperature,
+        ATTR_ENABLED_FN: lambda x: True,
+    },
+    "return_temperature": {
+        ATTR_MEASUREMENT_NAME: "Flow Return Temperature",
+        ATTR_ICON: "mdi:thermometer",
+        ATTR_UNIT_FN: lambda x: TEMP_UNIT_LOOKUP.get(x.device.temp_unit, TEMP_CELSIUS),
+        ATTR_DEVICE_CLASS: DEVICE_CLASS_TEMPERATURE,
+        ATTR_VALUE_FN: lambda zone: zone.return_temperature,
+        ATTR_ENABLED_FN: lambda x: True,
+    },
 }
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/requirements_all.txt b/requirements_all.txt
index e35d2f980ec..62a27f90c38 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1411,7 +1411,7 @@ pymailgunner==1.4
 pymediaroom==0.6.4
 
 # homeassistant.components.melcloud
-pymelcloud==2.4.1
+pymelcloud==2.5.2
 
 # homeassistant.components.somfy
 pymfy==0.7.1
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 130e6568fff..33bd8c3f9d0 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -576,7 +576,7 @@ pylitejet==0.1
 pymailgunner==1.4
 
 # homeassistant.components.melcloud
-pymelcloud==2.4.1
+pymelcloud==2.5.2
 
 # homeassistant.components.somfy
 pymfy==0.7.1