diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 8aa5fd9..f9cd909 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: actions/setup-python@v4
+    - uses: actions/setup-python@v5
       id: py3
       with:
         python-version: ${{ matrix.python-version }}
@@ -59,7 +59,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Install Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       id: py3
       with:
         python-version: ${{ matrix.python-version }}
@@ -94,11 +94,11 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
-    runs-on: macos-latest
+    runs-on: macos-13
     steps:
     - uses: actions/checkout@v3
     - name: Install Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       id: py3
       with:
         python-version: ${{ matrix.python-version }}