diff --git a/tests/test_sensor.py b/tests/test_sensor.py
index c73e5d3..90525e2 100644
--- a/tests/test_sensor.py
+++ b/tests/test_sensor.py
@@ -223,7 +223,7 @@ async def test_sensor_update(
 
     assert mock_watersmart_client.async_get_hourly_data.call_count == 1
 
-    async_fire_time_changed(hass, dt.datetime.now() + dt.timedelta(hours=1))
+    async_fire_time_changed(hass, dt.datetime.now() + dt.timedelta(hours=1, minutes=5))
     await hass.async_block_till_done()
 
     assert mock_watersmart_client.async_get_hourly_data.call_count == 2