diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e5f61e8..4609e16 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,14 +15,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest, ubuntu-20.04, macos-latest, macos-11 ]
+        os: [ ubuntu-latest, ubuntu-20.04, macos-latest, macos-12 ]
         gsvers: [ 3.7.0, 3.7.1 ]
     runs-on: ${{ matrix.os }}
     env:
       GS_VERS: ${{ matrix.gsvers }}
       PLATFORM: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - id: setup-superDoit
         uses: dalehenrich/setup-superDoit@v3
         with: