John Mayer is celebrating one full year of being sober.

JOHN MAYER CELEBRATES ONE YEAR SOBER

The singer, who turned 40 earlier this month, wrote a brief message about quitting drinking. His words, though, indicate that his sobriety may just be a temporary thing. ‘One year ago today, I decided to give drinking a break,” he tweeted Tuesday. “A very personal thing for everyone. For me, a constant return on investment.” Shortly after, however, he added, “I post this because I want people to know that ‘that’s enough for now’ is on the menu, so to speak.”

In June, the singer admitted to Rolling Stone that he had put alcohol on the shelf for a while and replaced it with marijuana. “I put it where drinking used to go, and the quality of life has gone up considerably,” he said. “Drinking is a… con. How much is enough? Every time I drank, I was looking for some sort of regulated amount. It always feels wrong for me. I always feel like I went overboard. ‘I said two, now it’s three, now we’re at four?'” he said before adding, “I never had a serious issue with it, but I remember looking around going, ‘This feels rigged. I’m taking a break.’ There’s never an amount that felt like I was succeeding at life. It always felt wrong.”

He had previously told The New York Times that he was “very thoughtfully entering cannabis life.”

Mayer has won seven Grammy Awards, including four for Best Male Pop Vocal Performance. He has also been touring heavily this year – as a solo act promoting his album The Search for Everything, and as part of Dead & Company, in which he performs with former Grateful Dead members Bob WeirMickey Hart, and Bill Kreutzmann.