Apps that help connect people with marijuana products are not welcome anymore in the Google Play store, the company announced in a policy update on Wednesday. That includes apps that facilitate cannabis transactions in states where it’s legal.

The updated policy section states that Google Play doesn’t “allow apps that facilitate the sale of marijuana or marijuana products, regardless of legality.” Previously the page didn’t include any specific mention of cannabis.

The revised guidelines go on to list descriptions of “common violations.” Apps can’t allow users “to order marijuana through an in-app shopping cart feature,” help users “in arranging delivery or pick up of marijuana” or facilitate the “sale of products containing THC.”

A google spokesperson explained the change in an email to Marijuana Moment, adding that affected companies can take advantage of a simple workaround.

“These apps simply need to move the shopping cart flow outside of the app itself to be compliant with this new policy,” the spokesperson said. “We’ve been in contact with many of the developers and are working with them to answer any technical questions and help them implement the changes without customer disruption.”

The spokesperson also said that the company recognizes the popularity of cannabis-related apps and hopes they will remain in the Play Store under the amended rules. Google is working directly with developers of affected apps, the spokesperson said.

Another new section of the policies stipulates that apps “that facilitate the sale of tobacco (including e-cigarettes)” are prohibited. Apps that help consumers purchase alcohol are apparently allowed, but not those that “encourage the irresponsible use of alcohol or tobacco.”

The update was first reported by Android Police, which also noted that Apple has previously banned marijuana-related apps such as the social networking platform MassRoots. But Apple lifted that ban in 2015 and has since taken a relatively hands-off approach to the issue.

Some of the best-known cannabis apps—Weedmaps and Eaze—are still available for download on Google Play as of the time of publication. But insiders believe that their essential functions (i.e. the ordering services) will have to be deactivated. Weedmaps alone has been installed more than one million times to date, and more than 50,000 users have downloaded Eaze.

Android Police reported that Google will be working with affected app developers to resolve any compliance issues over the next month.

In a blog post on Wednesday, Google said that it was generally making a series of policy changes to ensure that its app store serves as “a positive, safe environment for children and families.” As TechCrunch pointed out, this comes about five months after Google Play was the subject of an FTC complaint, which alleged that the company wasn’t doing enough to vet apps that appear in the kids section.

The tech industry has had a strained relationship with marijuana businesses, even as a growing number of states have decided to legalize and regulate the sale of cannabis.

Facebook, which recently showed off its artificial intelligence technology that’s capable of identifying images of marijuana, continues to prohibit the commercial advertising of cannabis products, regardless of the legality of the business under state law.

Noncommercial cannabis news sites such as Marijuana Moment and state regulatory bodies like the Massachusetts Cannabis Control Commission have also been caught up in the anti-marijuana policy despite the fact that they do not promote or sell cannabis products. In some cases, it appears these organizations have been hidden from appearing in search results—a practice known as “shadowbanning.”

The online shopping site eBay also gave cannabis consumers some bad news this week, clarifying that CBD products will continue to be banned globally regardless of individual country laws on the compound.

“Eaze connects adults only to licensed, regulated cannabis retailers,” Elizabeth Ashford, senior director of corporate communications for Eaze, said in an email. “Google’s decision is a disappointing development that only helps the illegal market thrive, but we are confident that Google, Apple and Facebook will eventually do the right thing and allow legal cannabis companies to do business on their platforms. We regret any inconvenience this may cause for customers and patients.”

“Prohibition is over,” she added. “Voters across the country have legalized cannabis.”

Marijuana Moment also reached out to Weedmaps for comment but the company has not yet provided a statement reacting to the Google policy change.

On the flip side, at least one major tech company is testing the regulatory waters after hemp and its derivatives were legalized under the 2018 Farm Bill. The payment processing service Square announced last week that has launched a pilot program designed to give businesses that sell hemp-derived CBD products access to credit card processing services as an alternative to traditional financial institutions that remain wary of working with the industry.

Marijuana might be banned from Google’s app market, but just last year it seemed the company’s executives were pretty bullish about loosening cannabis laws. Google co-founder Sergey Brin joked about supplying employees with joints at a post-election meeting in September.

“I was asking if we could serve joints outside on the patio, but apparently these things take a little while to take effect,” Brin said, referring to the implementation of California’s cannabis legalization measure. “It was a huge, huge disappointment. I’ve been bemoaning that all week, I’ll be honest with you.”

Disclosure: Weedmaps and Eaze are Marijuana Moment advertisers/sponsors.

This story was updated to include comment from Google and Eaze.

Photo courtesy of Rick Proctor.