diff --git a/.github/workflows/autobuild.yml b/.github/workflows/autobuild.yml
index eb32236062..dd6f16170d 100644
--- a/.github/workflows/autobuild.yml
+++ b/.github/workflows/autobuild.yml
@@ -132,12 +132,12 @@ jobs:
 
           - config_name:            MacOS (artifacts)
             target_os:              macos
-            # Stay on 10.15 as long as we use dmgbuild which does not work with 11's hdiutil (?):
-            building_on_os:         macos-10.15
-            base_command:           QT_VERSION=5.15.2 SIGN_IF_POSSIBLE=1 ./.github/autobuild/mac.sh
+            building_on_os:         macos-12
+            base_command:           QT_VERSION=6.3.1 SIGN_IF_POSSIBLE=1 ./.github/autobuild/mac.sh
             # Disable CodeQL on mac as it interferes with signing the binaries (signing hangs, see #2563 and #2564)
             run_codeql:             false
-            xcode_version:          12.1.1
+            # Latest Xcode which runs on macos-11:
+            xcode_version:          13.4.1
 
           # Reminder: If Legacy is removed, be sure to add a dedicated job for CodeQL again.
           - config_name:            MacOS Legacy (artifacts+CodeQL)