diff --git a/.github/workflows/tests_alpha.yml b/.github/workflows/tests_alpha.yml
index c71d2e6..a7bd733 100644
--- a/.github/workflows/tests_alpha.yml
+++ b/.github/workflows/tests_alpha.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       matrix:
-        operating-system: [ubuntu-22.04, ubuntu-24.04, ubuntu-24.04-arm, macos-13, macos-15]
+        operating-system: [ubuntu-22.04, ubuntu-24.04, ubuntu-24.04-arm, macos-15-intel, macos-15]
     timeout-minutes: 90
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/tests_nightly.yml b/.github/workflows/tests_nightly.yml
index 0e29ee8..23d2ebc 100644
--- a/.github/workflows/tests_nightly.yml
+++ b/.github/workflows/tests_nightly.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       matrix:
-        operating-system: [ubuntu-22.04, ubuntu-24.04, ubuntu-24.04-arm, macos-13, macos-15]
+        operating-system: [ubuntu-22.04, ubuntu-24.04, ubuntu-24.04-arm, macos-15-intel, macos-15]
     timeout-minutes: 90
     steps:
       - uses: actions/checkout@v4