Here's the screenshot:
Meanwhile, I've reverted my last update, and remember not to update PyYAML and LibYAML, but this should have some proper solution.

P.S. it also breaks AWS Elastic Beanstalk client.

    Just got this as well..........

    Last update was over 2 major versions
    pyyaml is upgraded from 3.12-8-1-x86_64 to 5.1.2-9-1-x86_64.

      henkesteen That's not correct. Version 4.x wasn't promoted to stable (apart from v4.1 which was retracted shortly after it was released). Just look at the release history on pypi. By the way you'll notice that after a few beta version, 5.1 was promoted to stable in march and we're 5 months later.

      By the way, the issue has already been reported on the dev tracker (see T8261) and we had a temporary patch awaiting review since docker-compose guys want to wait for v5.2 of pyyaml.

        8 days later

        So this is fixed now with the new docker-compose update.