diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c9ed318..300b0b1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-13]
+        os: [ubuntu-latest, macos-15-intel]
 
     steps:
     - name: checkout source
diff --git a/template/{{ package_name }}/.github/workflows/ci.yml b/template/{{ package_name }}/.github/workflows/ci.yml
index 307f076..0e7ca82 100644
--- a/template/{{ package_name }}/.github/workflows/ci.yml	
+++ b/template/{{ package_name }}/.github/workflows/ci.yml	
@@ -11,7 +11,7 @@ jobs:
     runs-on: ${{ '{{' }} matrix.os {{ '}}' }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-13]
+        os: [ubuntu-latest, macos-15-intel]
 
     steps:
     - uses: actions/checkout@v2