diff --git a/.github/actions/poetry_setup/action.yml b/.github/actions/poetry_setup/action.yml
index f23dd7c..6955b82 100644
--- a/.github/actions/poetry_setup/action.yml
+++ b/.github/actions/poetry_setup/action.yml
@@ -53,8 +53,20 @@ runs:
           ~/.cache/pip
         key: pip-${{ runner.os }}-${{ runner.arch }}-py-${{ inputs.python-version }}
 
-    - run: pipx install poetry==${{ inputs.poetry-version }} --python python${{ inputs.python-version }}
+    - name: Update PyPI packages
       shell: bash
+      run: |
+        python -m pip install -U pip wheel
+
+        # Python prior to 3.12 ships setuptools. Upgrade it if present.
+        if pip freeze --all | grep -q '^setuptools=='; then
+            python -m pip install -U setuptools
+        fi
+
+    - name: Install Poetry
+      shell: bash
+      run: |
+        pip install poetry==${{ inputs.poetry-version }}
 
     - name: Check Poetry File
       shell: bash