diff --git a/.github/workflows/PackageTest.yml b/.github/workflows/PackageTest.yml
index 4e5c7fa..8cefaa3 100644
--- a/.github/workflows/PackageTest.yml
+++ b/.github/workflows/PackageTest.yml
@@ -18,10 +18,15 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
       - name: Install poetry
         run: |
           pip install poetry
-          poetry env use python${{ matrix.python_version }}
+          poetry env use python${{ matrix.python-version }}
 
       - name: Install dependencies
         run: poetry install --with tests