diff --git a/homeassistant/components/zha/update.py b/homeassistant/components/zha/update.py
index 93912fc68db..e92424acf47 100644
--- a/homeassistant/components/zha/update.py
+++ b/homeassistant/components/zha/update.py
@@ -122,6 +122,7 @@ class ZHAFirmwareUpdateEntity(ZhaEntity, UpdateEntity):
         self._latest_version_firmware = image
         self._attr_latest_version = f"0x{image.header.file_version:08x}"
         self._image_type = image.header.image_type
+        self._attr_installed_version = self.determine_installed_version()
         self.async_write_ha_state()
 
     @callback
diff --git a/tests/components/zha/test_update.py b/tests/components/zha/test_update.py
index c1424ca1730..981b8ba5e1b 100644
--- a/tests/components/zha/test_update.py
+++ b/tests/components/zha/test_update.py
@@ -108,12 +108,18 @@ async def setup_test_data(
     return zha_device, cluster, fw_image, installed_fw_version
 
 
+@pytest.mark.parametrize("initial_version_unknown", (False, True))
 async def test_firmware_update_notification_from_zigpy(
-    hass: HomeAssistant, zha_device_joined_restored, zigpy_device
+    hass: HomeAssistant,
+    zha_device_joined_restored,
+    zigpy_device,
+    initial_version_unknown,
 ) -> None:
     """Test ZHA update platform - firmware update notification."""
     zha_device, cluster, fw_image, installed_fw_version = await setup_test_data(
-        zha_device_joined_restored, zigpy_device
+        zha_device_joined_restored,
+        zigpy_device,
+        skip_attribute_plugs=initial_version_unknown,
     )
 
     entity_id = find_entity_id(Platform.UPDATE, zha_device, hass)