Are there ever corrections to the Jewish calendar?

[Hari Seldon]

Just out of curiosity, I calculated that the calendar cycle of of 19 years with 235 lunar months is about two hours too long, which means a day gets added every 12 cycles or 228 years. Unless corrected, this means it is now running about 10 or 11 days later than it was in biblical times and would result in Rosh Hashona being in mid-winter in a few thousand years. Is there any thought to correcting it? I guess the only way would be to have a cycle with only 234 months.