diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c19a81a..4fe92d1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Setup Python 3.9
-        uses: actions/setup-python@v3.1.2
+        uses: actions/setup-python@v4.0.0
         with:
           python-version: 3.9
         #----------------------------------------------
@@ -97,7 +97,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Setup Python ${{ matrix.pyver }}
-        uses: actions/setup-python@v3.1.2
+        uses: actions/setup-python@v4.0.0
         with:
           python-version: ${{ matrix.pyver }}
         #----------------------------------------------
@@ -158,7 +158,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Setup Python 3.9
-        uses: actions/setup-python@v3.1.2
+        uses: actions/setup-python@v4.0.0
         with:
           python-version: 3.9
       - name: Install Poetry