diff --git a/homeassistant/components/tasmota/manifest.json b/homeassistant/components/tasmota/manifest.json
index b087e13ece0..a0414b6450b 100644
--- a/homeassistant/components/tasmota/manifest.json
+++ b/homeassistant/components/tasmota/manifest.json
@@ -3,7 +3,7 @@
   "name": "Tasmota (beta)",
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/tasmota",
-  "requirements": ["hatasmota==0.0.25"],
+  "requirements": ["hatasmota==0.0.25.1"],
   "dependencies": ["mqtt"],
   "mqtt": ["tasmota/discovery/#"],
   "codeowners": ["@emontnemery"]
diff --git a/requirements_all.txt b/requirements_all.txt
index c5249892b15..7504b10e9e2 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -732,7 +732,7 @@ hass-nabucasa==0.37.1
 hass_splunk==0.1.1
 
 # homeassistant.components.tasmota
-hatasmota==0.0.25
+hatasmota==0.0.25.1
 
 # homeassistant.components.jewish_calendar
 hdate==0.9.12
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 6a172830d5c..2e74a82e8c4 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -367,7 +367,7 @@ hangups==0.4.11
 hass-nabucasa==0.37.1
 
 # homeassistant.components.tasmota
-hatasmota==0.0.25
+hatasmota==0.0.25.1
 
 # homeassistant.components.jewish_calendar
 hdate==0.9.12
diff --git a/tests/components/tasmota/test_common.py b/tests/components/tasmota/test_common.py
index 5c18f2f401c..665249f312a 100644
--- a/tests/components/tasmota/test_common.py
+++ b/tests/components/tasmota/test_common.py
@@ -58,6 +58,44 @@ DEFAULT_CONFIG = {
 }
 
 
+DEFAULT_CONFIG_9_0_0_4 = {
+    "ip": "192.168.15.10",
+    "dn": "Tasmota",
+    "fn": ["Test", "Beer", "Milk", "Four", None],
+    "hn": "tasmota_49A3BC-0956",
+    "if": 0,  # iFan
+    "lk": 1,  # RGB + white channels linked to a single light
+    "mac": "00000049A3BC",
+    "md": "Sonoff Basic",
+    "ofln": "Offline",
+    "onln": "Online",
+    "state": ["OFF", "ON", "TOGGLE", "HOLD"],
+    "sw": "8.4.0.2",
+    "swn": [None, None, None, None, None],
+    "t": "tasmota_49A3BC",
+    "ft": "%topic%/%prefix%/",
+    "tp": ["cmnd", "stat", "tele"],
+    "rl": [0, 0, 0, 0, 0, 0, 0, 0],
+    "swc": [-1, -1, -1, -1, -1, -1, -1, -1],
+    "btn": [0, 0, 0, 0],
+    "so": {
+        "4": 0,  # Return MQTT response as RESULT or %COMMAND%
+        "11": 0,  # Swap button single and double press functionality
+        "13": 0,  # Allow immediate action on single button press
+        "17": 1,  # Show Color string as hex or comma-separated
+        "20": 0,  # Update of Dimmer/Color/CT without turning power on
+        "30": 0,  # Enforce Home Assistant auto-discovery as light
+        "68": 0,  # Multi-channel PWM instead of a single light
+        "73": 0,  # Enable Buttons decoupling and send multi-press and hold MQTT messages
+        "82": 0,  # Reduce the CT range from 153..500 to 200.380
+        "114": 0,  # Enable sending switch MQTT messages
+    },
+    "ty": 0,  # Tuya MCU
+    "lt_st": 0,
+    "ver": 1,
+}
+
+
 async def help_test_availability_when_connection_lost(
     hass,
     mqtt_client_mock,
diff --git a/tests/components/tasmota/test_discovery.py b/tests/components/tasmota/test_discovery.py
index 607676615a7..ba288ef93ae 100644
--- a/tests/components/tasmota/test_discovery.py
+++ b/tests/components/tasmota/test_discovery.py
@@ -6,7 +6,7 @@ from homeassistant.components.tasmota.const import DEFAULT_PREFIX
 from homeassistant.components.tasmota.discovery import ALREADY_DISCOVERED
 
 from .conftest import setup_tasmota_helper
-from .test_common import DEFAULT_CONFIG
+from .test_common import DEFAULT_CONFIG, DEFAULT_CONFIG_9_0_0_4
 
 from tests.async_mock import patch
 from tests.common import async_fire_mqtt_message
@@ -132,6 +132,29 @@ async def test_device_discover(
     assert device_entry.sw_version == config["sw"]
 
 
+async def test_device_discover_deprecated(
+    hass, mqtt_mock, caplog, device_reg, entity_reg, setup_tasmota
+):
+    """Test setting up a device with deprecated discovery message."""
+    config = copy.deepcopy(DEFAULT_CONFIG_9_0_0_4)
+    mac = config["mac"]
+
+    async_fire_mqtt_message(
+        hass,
+        f"{DEFAULT_PREFIX}/{mac}/config",
+        json.dumps(config),
+    )
+    await hass.async_block_till_done()
+
+    # Verify device and registry entries are created
+    device_entry = device_reg.async_get_device(set(), {("mac", mac)})
+    assert device_entry is not None
+    assert device_entry.manufacturer == "Tasmota"
+    assert device_entry.model == config["md"]
+    assert device_entry.name == config["dn"]
+    assert device_entry.sw_version == config["sw"]
+
+
 async def test_device_update(
     hass, mqtt_mock, caplog, device_reg, entity_reg, setup_tasmota
 ):