diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0b0b5dc..5380a31 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Set up Python ${{ env.MASTER_PYTHON }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4.1.0
         with:
           python-version: ${{ env.MASTER_PYTHON }}
       - name: Install Poetry Itself
@@ -48,7 +48,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4.1.0
         with:
           python-version: ${{ matrix.python }}
       - name: Install Poetry Itself
@@ -75,7 +75,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Set up Python ${{ env.MASTER_PYTHON }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4.1.0
         with:
           python-version: ${{ env.MASTER_PYTHON }}
       - name: Install Poetry Itself
@@ -105,7 +105,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Set up Python ${{ env.MASTER_PYTHON }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4.1.0
         with:
           python-version: ${{ env.MASTER_PYTHON }}
       - name: Install Poetry Itself