diff --git a/homeassistant/components/bsblan/__init__.py b/homeassistant/components/bsblan/__init__.py
index 870d96dab86..9f4bb38e315 100644
--- a/homeassistant/components/bsblan/__init__.py
+++ b/homeassistant/components/bsblan/__init__.py
@@ -28,7 +28,6 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     bsblan = BSBLan(
         entry.data[CONF_HOST],
         passkey=entry.data[CONF_PASSKEY],
-        loop=hass.loop,
         port=entry.data[CONF_PORT],
         session=session,
     )
diff --git a/homeassistant/components/bsblan/climate.py b/homeassistant/components/bsblan/climate.py
index c84b3304c7b..a97c13c3424 100644
--- a/homeassistant/components/bsblan/climate.py
+++ b/homeassistant/components/bsblan/climate.py
@@ -94,14 +94,13 @@ class BSBLanClimate(ClimateEntity):
         """Initialize BSBLan climate device."""
         self._current_temperature: Optional[float] = None
         self._available = True
-        self._current_hvac_mode: Optional[int] = None
+        self._hvac_mode: Optional[str] = None
         self._target_temperature: Optional[float] = None
-        self._info: Info = info
-        self.bsblan = bsblan
         self._temperature_unit = None
-        self._hvac_mode = None
         self._preset_mode = None
         self._store_hvac_mode = None
+        self._info: Info = info
+        self.bsblan = bsblan
 
     @property
     def name(self) -> str:
@@ -138,7 +137,7 @@ class BSBLanClimate(ClimateEntity):
     @property
     def hvac_mode(self):
         """Return the current operation mode."""
-        return self._current_hvac_mode
+        return self._hvac_mode
 
     @property
     def hvac_modes(self):
@@ -165,10 +164,10 @@ class BSBLanClimate(ClimateEntity):
         _LOGGER.debug("Setting preset mode to: %s", preset_mode)
         if preset_mode == PRESET_NONE:
             # restore previous hvac mode
-            self._current_hvac_mode = self._store_hvac_mode
+            self._hvac_mode = self._store_hvac_mode
         else:
             # Store hvac mode.
-            self._store_hvac_mode = self._current_hvac_mode
+            self._store_hvac_mode = self._hvac_mode
             await self.async_set_data(preset_mode=preset_mode)
 
     async def async_set_hvac_mode(self, hvac_mode):
@@ -216,18 +215,18 @@ class BSBLanClimate(ClimateEntity):
 
         self._available = True
 
-        self._current_temperature = float(state.current_temperature)
-        self._target_temperature = float(state.target_temperature)
+        self._current_temperature = float(state.current_temperature.value)
+        self._target_temperature = float(state.target_temperature.value)
 
         # check if preset is active else get hvac mode
-        _LOGGER.debug("state hvac/preset mode: %s", state.current_hvac_mode)
-        if state.current_hvac_mode == "2":
+        _LOGGER.debug("state hvac/preset mode: %s", state.hvac_mode.value)
+        if state.hvac_mode.value == "2":
             self._preset_mode = PRESET_ECO
         else:
-            self._current_hvac_mode = BSBLAN_TO_HA_STATE[state.current_hvac_mode]
+            self._hvac_mode = BSBLAN_TO_HA_STATE[state.hvac_mode.value]
             self._preset_mode = PRESET_NONE
 
-        self._temperature_unit = state.temperature_unit
+        self._temperature_unit = state.current_temperature.unit
 
     @property
     def device_info(self) -> Dict[str, Any]:
diff --git a/homeassistant/components/bsblan/config_flow.py b/homeassistant/components/bsblan/config_flow.py
index e0e806ae205..faca81bb6a7 100644
--- a/homeassistant/components/bsblan/config_flow.py
+++ b/homeassistant/components/bsblan/config_flow.py
@@ -75,7 +75,5 @@ class BSBLanFlowHandler(ConfigFlow, domain=DOMAIN):
         """Get device information from an BSBLan device."""
         session = async_get_clientsession(self.hass)
         _LOGGER.debug("request bsblan.info:")
-        bsblan = BSBLan(
-            host, passkey=passkey, port=port, session=session, loop=self.hass.loop
-        )
+        bsblan = BSBLan(host, passkey=passkey, port=port, session=session)
         return await bsblan.info()
diff --git a/homeassistant/components/bsblan/manifest.json b/homeassistant/components/bsblan/manifest.json
index e396db57962..0348cf3eeb4 100644
--- a/homeassistant/components/bsblan/manifest.json
+++ b/homeassistant/components/bsblan/manifest.json
@@ -3,6 +3,6 @@
   "name": "BSB-Lan",
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/bsblan",
-  "requirements": ["bsblan==0.3.7"],
+  "requirements": ["bsblan==0.4.0"],
   "codeowners": ["@liudger"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 103c2a39845..b6512331c71 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -392,7 +392,7 @@ brottsplatskartan==0.0.1
 brunt==0.1.3
 
 # homeassistant.components.bsblan
-bsblan==0.3.7
+bsblan==0.4.0
 
 # homeassistant.components.bluetooth_tracker
 bt_proximity==0.2
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 50883a53bd7..cf0f1a7beaa 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -210,7 +210,7 @@ broadlink==0.15.0
 brother==0.1.18
 
 # homeassistant.components.bsblan
-bsblan==0.3.7
+bsblan==0.4.0
 
 # homeassistant.components.buienradar
 buienradar==1.0.4