diff --git a/README.md b/README.md
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 moodle-availability_password
 ============================
 
-[![Moodle Plugin CI](https://github.com/moodle-an-hochschulen/moodle-availability_password/workflows/Moodle%20Plugin%20CI/badge.svg?branch=main)](https://github.com/moodle-an-hochschulen/moodle-availability_password/actions?query=workflow%3A%22Moodle+Plugin+CI%22+branch%3Amain)
+[![Moodle Plugin CI](https://github.com/moodle-an-hochschulen/moodle-availability_password/workflows/Moodle%20Plugin%20CI/badge.svg?branch=MOODLE_405_STABLE)](https://github.com/moodle-an-hochschulen/moodle-availability_password/actions?query=workflow%3A%22Moodle+Plugin+CI%22+branch%3AMOODLE_405_STABLE)
 
 Moodle availability plugin which lets users restrict resources and activities with password access