Authentication from bamboo to marketplace via script fails with 401

[Arthur]

Hi, we have a groovy script in bamboo that looks into our apps in the marketplace. The script authenticates via Http basic auth, providing our marketplace service accounts username and password.

That worked fine... until now!

Now the script returns a 401 Unauthorized response. I double checked the credentials, they'r fine. 

Did Atlassian forbid logins to marketplace from scripts lately?

thanks!