That seems to have been the holding position from many suppliers for the past year, pretty sure that same info has been up from Octopus for a long time now.
The annoying thing is that there have been several hints of much lower overnight prices, as a consequence of the price cap and, it seems, some re-vamping of the balance between peak and off-peak by one or two suppliers.
All I want to see is the off peak tariff that applies from tomorrow, from each supplier (including the one I'm with - they are keeping schtum about the changes).