"Requires Updating" message after updating from dashboard

Hello,

I have updated from 5.0.12 to 5.0.13 (clean cache and redo the process)
but in the dashboard i still have the message : "Requires Updating"

then today i have updated again from 5.0.xx to 5.0.14
same message : "Requires Updating"

see http://awesomescreenshot.com/03551dpa25

what can i do ?

Thanks in advance
loïc