diff --git a/.github/workflows/mac-dmg.yml b/.github/workflows/mac-dmg.yml
index d26537834..fdfda1f71 100644
--- a/.github/workflows/mac-dmg.yml
+++ b/.github/workflows/mac-dmg.yml
@@ -32,7 +32,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - os: macos-13
+        - os: macos-12
           architecture: x64
           output-suffix: x64
           xcode-path: '/Applications/Xcode_13.2.1.app'