Backups at shipping ports have caused a season of shortages for plenty of holiday must-haves – including toys and food. The delays are now impacting alcohol.

Liquor store owners say they’ve been receiving fewer shipments of liquor, wine and beer.

New data shows 11% of alcoholic beverages have been sold out in stores nationwide since the end of November.

Officials say it’s not just the alcohol that is in shorter supply, there is also a shortage in glass, cork and necessary materials to bottle.

Liquor store owners also say the shortage has forced them to raise prices by about $1 to $2 per bottle.