diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 296a3efb5..3eb5322ea 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -72,11 +72,10 @@ jobs:
         run: cd build ; ctest -j 10 --output-on-failure
 
   macos-14:
+    runs-on: macos-14 # https://github.com/actions/runner-images/blob/main/images/macos/macos-14-Readme.md
     strategy:
       matrix:
         xcode: ['15.3', '15.4']
-        image: ['macos-14', 'macos-14-arm64']
-    runs-on: ${{ matrix.image }} # https://github.com/actions/runner-images/blob/main/images/macos/macos-14-Readme.md
     env:
       DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode }}.app/Contents/Developer
 
@@ -90,11 +89,10 @@ jobs:
         run: cd build ; ctest -j 10 --output-on-failure
 
   macos-15:
+    runs-on: macos-15 # https://github.com/actions/runner-images/blob/main/images/macos/macos-15-Readme.md
     strategy:
       matrix:
         xcode: ['16.0', '16.1', '16.2', '16.3']
-        image: ['macos-15', 'macos-15-arm64']
-    runs-on: ${{ matrix.image }} # https://github.com/actions/runner-images/blob/main/images/macos/macos-15-Readme.md
     env:
       DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode }}.app/Contents/Developer