diff --git a/CHANGES.md b/CHANGES.md
index 283ea16..5eaa657 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -6,6 +6,7 @@ Changes
 
 ### Unreleased
 
+* 2024-08-24 - Development: Rename master branch to main, please update your clones.
 * 2024-08-20 - Prepare compatibility for Moodle 4.4.
 
 ### v4.3-r3
diff --git a/README.md b/README.md
index 719ad4c..573abd4 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 moodle-local_profiletheme
 =========================
 
-[![Moodle Plugin CI](https://github.com/moodle-an-hochschulen/moodle-local_profiletheme/workflows/Moodle%20Plugin%20CI/badge.svg?branch=master)](https://github.com/moodle-an-hochschulen/moodle-local_profiletheme/actions?query=workflow%3A%22Moodle+Plugin+CI%22+branch%3Amaster)
+[![Moodle Plugin CI](https://github.com/moodle-an-hochschulen/moodle-local_profiletheme/workflows/Moodle%20Plugin%20CI/badge.svg?branch=main)](https://github.com/moodle-an-hochschulen/moodle-local_profiletheme/actions?query=workflow%3A%22Moodle+Plugin+CI%22+branch%3Amain)
 
 Moodle plugin which lets admins deliver a certain theme based on a user's custom profile field