Well it seems the RMT is still in a paddy with the operators of the Heathrow Express, and have called their workers out to action again.
The strike is scheduled to begin at 09:15 on 26 June, and will last for 24 hours.
In addition, the workers will also ban overtime and will work to rule for 24 hours from 25 June and again from 27 June.
Plan your journeys accordingly, especially as an London Underground strike is due to hit shortly after the Heathrow Express strike finishes.